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DS89C450-K00 DS89C450 Evaluation Kit
www.maxim-ic.com
GENERAL DESCRIPTION
The DS89C450-K00 Evaluation Kit is a proven platform to conveniently evaluate the capabilities of the Ultra-High-Speed Flash Microcontroller family. The kit contains the DS89C450 in a DIP-40 socket, 128K of SRAM mapped through a preprogrammed CPLD, a power-supply regulator, two DB-9 serial connectors, and switches and LEDs to control and display board operation. With the addition of a power supply and an RS-232 cable connected to a personal computer, the kit provides a completely functional system ideal for application development and debug. The DS89C450-K00 can also be used as a programming and development platform for the DS5000(T). Quick-start instructions and sample programs can be obtained from the DS5000 directory on the software tool disk, or from Dallas Semiconductor technical support. Email us at micro.support@dalsemi.com.
FEATURES
Easily Load Code Using Bootstrap Loader and Serial 0 Port (DB-9, J2) Two DB-9 RS-232 Serial Connectors Two Internal Serial Ports On-Board Power Supply Regulator 128K of On-Board Program+Data RAM Preprogrammed Xilinx CPLD Handles Address Multiplexing and RAM Mapping LED Display of Port 0 Levels Push-Button Switches for Reset and Interrupt Generation Prototyping Area Board Schematics Included to Provide a Convenient Reference Design
EVALUATION KIT CONTENTS
Evaluation Kit Board with Processor and 16.384MHz Crystal Installed 8051-Based Microcontroller Software Eval Disk
ORDERING INFORMATION
PART DS89C450-K00 TEMP RANGE Room DIMENSIONS Approx. 16cm x 10cm
Figure 1. DS89C450 Evaluation Kit Board 1 of 12
REV: 092704
DS89C450-K00, DS89C450 Evaluation Kit
COMPONENT LIST
DESIGNATION C1, C6 C2, C7 C3, C4, C5, C8-C15 C16, C17 J1 J2, J3 J4 J5 JP1, JP2 R1, R4 R2, R3 R5 RN1, RN3, RN4 RN2 SW1, SW4, SW5 SW2, SW3 U1 U2 U3 U4 U5 U6 U7 U8 U9 U10 Y1 QTY 2 2 11 2 1 2 1 1 2 2 2 1 3 1 3 2 1 1 1 1 1 1 -- 1 1 1 1 DESCRIPTION 100mF, 25V radial capacitors 22mF, 10V tantalum capacitors 0.1mF capacitors (0805) 22pF capacitors 2mm male power-barrel connector DB9 RS-232 female connectors Micro header pins (unpopulated) Spare input header pins (unpopulated) Solder pad jumpers (closed) 1.1kW resistors (0805) 10kW resistors (0805) 680W resistor (0805) Resistor pack (8) - 330W Resistor pack (8) - 3.3kW DIP switch x8 SPST pushbutton 350mA linear regulator (5V) 350mA linear regulator (3.3V) DS89C450 microcontroller (40-PDIP) Quad buffer Preprogrammed 44-pin CPLD 128k x 8 asynchronous cache SRAM Unpopulated RS-232 transceiver (2 Tx, 2 Rx) Inverting octal buffer LED x10 display (Port 1 + power) 16.384MHz crystal (socketed) SUPPLIER Panasonic Panasonic Generic Panasonic CUI Inc. Amp/Tyco ECJ-2VC1H220J PJ-002A 745781-4 PART ECA-1EM101 ECS-T1AX226R
Generic Generic Generic CTS CTS C&K Panasonic MAXIM MAXIM DALLAS Fairchild Xilinx Cypress -- MAXIM Fairchild Lumex Citizen
770101331 770101332 SDA08H1KD EVQ-PAC04M MAX1659ESA MAX1658ESA DS89C450-MNL 74AC125 XC9536XL-10PC44C AS7C1024A-10TJC -- MAX233ACWP 74AC540 SSA-LXB10IW-GF/LP HC49US16.384MABJ
MAXIM is a registered trademark of Maxim Integrated Products, Inc. DALLAS is a registered trademark of Dallas Semiconductor Corp.
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DS89C450-K00, DS89C450 Evaluation Kit
TYPICAL OPERATING CIRCUIT
Figure 2. DS89C450 Evaluation Kit Board Layout
DETAILED DESCRIPTION
This evaluation kit must be used with the DS89C430/DS89C440/DS89C450 ultra-high-speed flash microcontrollers data sheet and the Ultra-High-Speed Flash Microcontroller User's Guide (www.maxim-ic.com/user_guides). A complete description of the bootstrap loader commands and functions is located in Section 15 of the Ultra-HighSpeed Flash Microcontroller User's Guide. The DS89C450 Evaluation Kit Board and all of its connectors are defined in the schematics provided in the accompanying documentation disk. However, a short description of the major components of the board follows.
Power Supplies
The evaluation kit accepts a DC input supply at J1. The supply should be a 6V to 9V DC supply, center post positive, with at least 300mA capacity. The exact DC input value of the supply is not important, as the on-board linear MAX1658 and MAX1659 regulators produce fixed 5V and 3.3V for use by the kit circuitry. While it is possible to supply up to 16V at J1 (the maximum input voltage of the MAX1658 and MAX1659), this will result in a large amount of heat dissipation from the board. A small heat-sink plane is provided on the backside of the board beneath the linear regulators, but this may be inadequate at input voltages above 9V. If U1 and U2 are hot, lower the DC input voltage at J1. Note that many unregulated DC wall plug-in supplies may provide an output level much higher than their labeled output value if they are lightly loaded.
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DS89C450-K00, DS89C450 Evaluation Kit
Serial Ports
Both serial ports of the DS89C450 (Serial Port 0 and Serial Port 1) are translated to RS-232 levels and brought out to DB9 connectors at J2 and J3. Serial Port 0 (J2) must always be used when communicating with the bootloader.
Memory
The external memory of the DS89C450 on this evaluation kit is designed to operate with the address and data bus multiplexed on P0 and P2. A 128K x 8 SRAM is installed, which is accessed as both program and data memory by this multiplexed bus. Note that as the total memory space of the DS89C450 is only 64K of program memory and 64K of data memory, port pin memory banking must be used to access the entire 128K-memory space.
CPLD
The CPLD device on the evaluation kit board is preprogrammed to perform several functions. * Address latching of the low 8 bits of the external memory address from port P0. * Mapping together program and data memory. * Performing port pin memory banking (optional). The RTL code preprogrammed into the CPLD is as follows. module Eval(AD, nRD, ALE, nPSEN, CFG0, CFG1, SW_IN, P1, A, A16, A17, nOE, SW_OUT); input input input input input input input inout [7:0] AD; nRD; ALE; nPSEN; CFG0; CFG1; SW_IN; [7:0] P1; // // // // // // // Multiplexed low-order address and data from micro Data memory read enable from micro Address latch enable from micro Program memory read enable from micro Configuration input zero (from DIP switch) Configuration input one (from DIP switch) Interrupt switch input (from pushbutton)
// Port 1 from micro // // // // // Demultiplexed low-order address to RAM Address line to RAM Address line to RAM Output enable to RAM Interrupt switch output (to micro)
output [7:0] A; output A16; output A17; output nOE; output SW_OUT; reg [7:0] A;
always @(negedge ALE) begin A <= AD; end assign assign assign assign assign assign assign assign assign assign assign assign A16 A17 P1[0] P1[1] P1[2] P1[3] P1[4] P1[5] P1[6] P1[7] nOE SW_OUT = = = = = = = = = = = = (CFG0 == 0) ? (CFG0 == 0) ? (CFG1 == 0) ? (CFG1 == 0) ? (CFG1 == 0) ? (CFG1 == 0) ? (CFG1 == 0) ? (CFG1 == 0) ? (CFG1 == 0) ? (CFG1 == 0) ? nRD & nPSEN; SW_IN; P1[0] : 1'b0; P1[1] : 1'b0; SW_IN : 1'bz; SW_IN : 1'bz; SW_IN : 1'bz; SW_IN : 1'bz; ~SW_IN : 1'bz; ~SW_IN : 1'bz; ~SW_IN : 1'bz; ~SW_IN : 1'bz;
endmodule
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DS89C450-K00, DS89C450 Evaluation Kit DIP switches SW4.3 and SW4.4 are used as configuration inputs by the CPLD program. Normally, these switches should be OFF for proper operation. Turning DIP switch SW4.3 ON causes the high address lines A16 and A17 to be set to the values at port pins P1.0 and P1.1. This can be used for address banking, but is not required for normal operation. Turning DIP switch SW4.4 on puts the CPLD into a test mode; press SW3 to toggle the LEDs.
Pushbuttons
Reset and interrupt pushbuttons are provided. The reset button resets the DS89C450, while the interrupt button can be configured to pull down either the INT0 (by setting SW1.4 ON) or T0 (by setting SW1.5 ON) inputs to the microcontroller when pressed.
Header Pins and Prototyping Area
Header J4 provides access to all pins of the DS89C450, including power and ground. This header is adjacent to a 0.100" spaced grid prototyping area for circuit development.
GETTING STARTED
Before using the DS89C450 Evaluation Kit, the Microcontroller Tool Kit (MTK) application should be installed. MTK is included on the CD and is available at www.maxim-ic.com/products/microcontrollers/software/index.cfm. 1) Connect the DC 6V-9V, center post positive power supply to the power plug J1. 2) Connect a DB9 straight-through serial cable between the PC COM1 port and connector J2. 3) Set DIP switches SW1.1, SW1.2, SW1.3, SW4.1, and SW4.2 ON. All other DIP switches should be OFF. 4) Turn power ON. All the LEDs should light except for the second from the right. 5) Open MTK. In the initial dialog box, select the type of processor you are using (DS89C430, DS89C440, or DS89C450). 6) Select Options -> Configure Serial Port from the menu. Enter COM1 and 14400 baud. 7) Select Target -> Open COM1 at 14400 baud. 8) Select Target -> Connect to Loader. 9) A loader banner should appear, as shown in Figure 3. Refer to the user's guide for more details on the bootloader commands for the DS89C450. To load an application into the DS89C450 flash memory, first enter "K" at the bootloader prompt to erase the flash, then select File -> Load Flash and open the .hex file you wish to load. The Help menu in MTK provides additional information. The bootloader also allows you to write to Port 1 directly by entering "W P1 xx," where xx is a hex byte value. If you enter a value such as "W P1 55" or "W P1 AA," the LED display will change to reflect the new outputs at Port 1.
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DS89C450-K00, DS89C450 Evaluation Kit
Figure 3. Microcontroller Tool Kit Output
TECHNICAL SUPPORT
For additional technical support, e-mail your questions to micro.support@dalsemi.com.
SCHEMATICS
The DS89C450-K00 schematics are featured in the following six pages.
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5
4
3
2
1
VCC5
J4
AD[7..0]
D
J1
VUNREG
IN G1 G2
PJ-002A
1 2 3
AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7
1 2
TP9 GND
nEA_IN ALE nPSEN
C
A15 A14 A13 A12 A11 A10 A9 A8
40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21
A[15..8]
VCC P0.0/AD0 P0.1/AD1 P0.2/AD2 P0.3/AD3 P0.4/AD4 P0.5/AD5 P0.6 P0.7 EA/VPP ALE/PROG PSEN P2.7 P2.6 P2.5 P2.4 P2.3 P2.2 P2.1 P2.0
GND XTAL1 XTAL2 P3.7/nRD P3.6/nWR P3.5/T1 P3.4/T0 P3.3/nINT1 P3.2/nINT0 P3.1/TXD0 P3.0/RXD0 RST P1.7/nINT5 P1.6/INT4 P1.5/nINT3 P1.4/INT2 P1.3/TXD1 P1.2/RXD1 P1.1/T2EX P1.0/T2
20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
XTAL1 XTAL2 nRD nWR P35 P34 P33 P32 P31 P30 P17 P16 P15 P14 P13 P12 P11 P10 P1[7..0] P3[5..0]
D
RST
C
Header 2x20
VUNREG
U1
MAX1659
JP1
VCC5
VUNREG
U2
MAX1658
JP2
VCC3
B
3 6 7 2 1
IN3 IN6 IN7 SHDN
OUT4 OUT5 SET GND
4 5 1 8
1
2 1 2
TP7 VCC5
Solder Jumper (closed)
3 6 7 2 1
IN3 IN6 IN7 SHDN
OUT4 OUT5 SET GND
4 5 1 8
1
2 1 2
TP8 VCC3
Solder Jumper (closed)
B
1
+
C1 100uF, 25v
2
2
2
VCC5
1
A
2
C14 100nF 10v
2
C2 22uF 10v
+
C6 100uF, 25v
1
C7 22uF 10v
DS89C4x0 Evaluation Kit - Power and Header
Copyright (C) 2003 - Dallas Semiconductor / MAXIM Size A Wednesday, August 25, 2004 Document Number Sheet 1 of
1
Rev B
A
87-2C420-KIT 6
5
4
3
2
5
4
3
2
1
VCC5 U3 P3[5..0]
D
40
P30 P31 P32 P33 P34 P35
VCC
nWR n RD P1[7..0]
10 11 12 13 14 15 16 17 1 2 3 4 5 6 7 8 9 31 29
P3.0/RXD0 P3.1/TXD0 P3.2/INT0 P3.3/INT1 P3.4T0 P3.5/T1 P3.6/WR P3.7/RD P1.0/T2 P1.1/T2EX P1.2/RXD1 P1.3/TXD1 P1.4/INT2 P1.5/INT3 P1.6/INT4 P1.7/INT5 RST EA PSEN
P0.0/AD0 P0.1/AD1 P0.2/AD2 P0.3/AD3 P0.4/AD4 P0.5/AD5 P0.6/AD6 P0.7/AD7 P2.0/A8 P2.1/A9 P2.2/A10 P2.3/A11 P2.4/A12 P2.5/A13 P2.6/A14 P2.7/A15 ALE XTAL1
39 38 37 36 35 34 33 32 21 22 23 24 25 26 27 28 30 19 18
AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 A8 A9 A10 A11 A12 A13 A14 A15
AD[7..0]
D
P10 P11 P12 P13 P14 P15 P16 P17
A[15..8]
C
RST nEA_IN nPSEN nLOADER
ALE XTAL1 XTAL2 Y1
C
GND
XTAL2
20
DS89C4X0 DS89C4x0 DIP-40
1
2
VCC5
1
1
14 2 7
B
3
74AC125
2
2
C16 22pF 10v
1
U4A
16.384 MHz SOCKETED C17 22pF 10v VCC5
B
VCC5
13
10
U 4C
VCC5
14 5 7
4
6
U4B 74AC125
14 12 7
74AC125
11
8
14 9 7
U 4D 74AC125
nEA_OUT
A
DS89C4x0 Evaluation Kit - Processor
Copyright (C) 2003 - Dallas Semiconductor / MAXIM Size A Wednesday, August 25, 2004
5 4 3 2
Rev B
A
Document Number Sheet 2 of
1
87-2C420-KIT 6
5
4
3
2
1
D
D
TP1 TCK TP2 T DI TP4 TDO TP5 TMS
1
VCC3
1 1 21 41
U5
1 32
TP3 +3 V
VCCINTa
VCCINTb
17 15 30 16
AD[7..0] AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7
TCK TDI TDO TMS AD0 AD1 AD2 AD3 AD4 AD5 AD6 AD7 nRD ALE nPSEN CFG0 CFG1 SW_IN P10 P11 P12 P13 P14 P15 P16 P17
VCCIO
1
C
36 37 34 33 39 42 27 44 4 5 2 22 40 25
A0 A1 A2 A3 A4 A5 A6 A7 A16 A17 nOE SW_OUT
26 1 43 24 3 8 11 14 38 35 29 20
A0 A1 A2 A3 A4 A5 A6 A7
A[7..0]
C
n RD ALE nPSEN CFG0 CFG1 SW _IN P10 P11 P12 P13 P14 P15 P16 P17 P1[7..0]
A16 A17 nOE SW_OUT
B
GNDa
GNDb
10
23
31
GNDc
6 19 7 28 18 9 13 12
B
XC9536XL
1
TP6 GND
A
DS89C4x0 Evaluation Kit - CPLD
Copyright (C) 2003 - Dallas Semiconductor / MAXIM Size A W ednesday, August 25, 2004
5 4 3 2
Rev B
A
Document Number Sheet 3 of
1
87-2C420-KIT 6
5
4
3
2
1
D
D
AD[7..0] VCC5
OPTIONAL SECOND RAM VCC5
AD[7..0]
32
A17
VCC
30
A[7..0] A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15
CE2 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 nOE nWE NC
30
A[7..0] A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15
CE2 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 A16 nOE nWE NC nCE1
C
A[15..8]
A16 nOE
B
12 11 10 9 8 7 6 5 27 26 23 25 4 28 3 31 2 24 29 1
D0 D1 D2 D3 D4 D5 D6 D7
13 14 15 17 18 19 20 21
D0 D1 D2 D3 D4 D5 D6 D7
A[15..8]
A16 nOE nWR
12 11 10 9 8 7 6 5 27 26 23 25 4 28 3 31 2 24 29 1
VCC
32
U6
U7
C
D0 D1 D2 D3 D4 D5 D6 D7
13 14 15 17 18 19 20 21
D0 D1 D2 D3 D4 D5 D6 D7
nWR
B
GND
nCE1
16
AS7C1024
AS7C1024
A
16
GND
A17
22
22
DS89C4x0 Evaluation Kit - RAM
Copyright (C) 2003 - Dallas Semiconductor / MAXIM Size A W ednesday, August 25, 2004
5 4 3 2
Rev B
A
Document Number Sheet 4 of
1
87-2C420-KIT 6
5
4
3
2
1
J2 VCC5 DTR0 CTS0 RTS0 DSR0 D CD0
D
7
U11 TX0 TX1 RX0 RX1
RX0_232
T1IN T2IN R1OUT R2OUT C1+ C1VVbV+ GNDa
VCC
2 1 3 20 13 14 10 17 8 6
T1OUT T2OUT R1IN R2IN C2+ C2b+ C2C2bGNDb
5 18 4 19 12 15 16 11 9
TX0_232
5 9 4 8 3 7 2 6 1
DB9 RS232 FEMALE SERIAL PORT 0 LOADER
D
TX1_232 RX1_232 J3
RX1_232 TX1_232
DTR1 CTS1 RTS1 DSR1 D CD1
MAX203ECWP
C
5 9 4 8 3 7 2 6 1
DB9 RS232 FEMALE SERIAL PORT 1
C
nLED P1[7..0]
VCC5
20
U9
R N3
B
SW5
1 19
P10 P11 P12 P13 P14 P15 P16 P17 P10 P11 P12 P13 P14 P15 P16 P17
nOE1 nOE2 I0 I1 I2 I3 I4 I5 I6 I7
VCC
VCC3 U10 R N4
VCC5
1
1
10
RESISTOR SIP - 330 OHM
SW DIP-8 TURN ON TO PULL PORT 1 LINES LOW
GND
2 3 4 5 6 7 8 9 10
2 3 4 5 6 7 8 9
nO0 nO1 nO2 nO3 nO4 nO5 nO6 nO7
18 17 16 15 14 13 12 11
20 19 18 17 16 15 14 13 12 11
LXB10XX
1 2 3 4 5 6 7 8 9 10
2 3 4 5 6 7 8 9 10
1
B
R5 680 Ohm
74AC540
RESISTOR SIP - 330 OHM
10-SEGMENT RED LED
A
2
DS89C4x0 Evaluation Kit - Serial / Port 1
Copyright (C) 2003 - Dallas Semiconductor / MAXIM Size A W ednesday, August 25, 2004
5 4 3 2
Rev B
A
Document Number Sheet 5 of
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87-2C420-KIT 6
5
4
3
2
1
J5 VCC5 nLOADER nLED CFG0 CFG1 R1 1.1 K
D
1
1 2 3 4
SPARE INPUTS
D
2
SW1 nEA_IN P30 P31 P32 P34 P12 P13 RX1_232 SW DIP-8
R N1
SW4
R N2
VCC5
nEA_OUT RX0 TX0 SW_OUT RX1 TX1 TX1_232
1
2 3 4 5 6 7 8 9 10
SW DIP-8
2 3 4 5 6 7 8 9 10
1
RESISTOR SIP - 330 OHM
RESISTOR SIP - 3.3 K
C
C
SW 1.1 - ON FOR DS89C4x0 SW 1.2 - ON TO USE SERIAL PORT 0 / LOADER SW 1.3 - ON TO USE SERIAL PORT 0 / LOADER SW 1.4 - ON TO CONNECT SW 3 AND nINT0 SW 1.5 - ON TO CONNECT SW 3 AND T0 SW 1.6 - ON TO USE SERIAL PORT 1 SW 1.7 - ON TO USE SERIAL PORT 1 SW 1.8 - OFF FOR NORMAL USE
SW 1.1 - ON FOR LOADER MODE SW 1.2 - ON TO ENABLE LEDs SW 1.3 - OFF FOR NORMAL USE SW 1.4 - OFF FOR NORMAL USE SW 1.5 - UNUSED SW 1.6 - UNUSED SW 1.7 - UNUSED SW 1.8 - UNUSED
VCC5
1
R3 10k
B
VCC5 SW2 R2 10k
B
3
4
2
SW3
1
SW _IN
3
4
RST
2
1 1
R4 1.1k B3FS-1000
2
INTERRUPT PUSHBUTTON
1
B3FS-1000
2
RESET PUSHBUTTON
A
2
DS89C4x0 Evaluation Kit - Switches/Config
Copyright (C) 2003 - Dallas Semiconductor / MAXIM Size A W ednesday, August 25, 2004
5 4 3 2
Rev B
A
Document Number Sheet 6 of
1
87-2C420-KIT 6

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