Atmel AT89C5131A Installation manual

AT89C5131A Starter Kit
..............................................................................................
Hardware User Guide

Table of Contents
1AT89C5131A Starter Kit Hardware User User Guide
4245A–USB–11/04
Section 1
Introduction...........................................................................................1-1
1.1 Features....................................................................................................1-1
Section 2
Hardware Description...........................................................................2-3
2.1 Block Diagram...........................................................................................2-3
2.2 Power Supply............................................................................................2-4
2.3 C51 Standard Settings..............................................................................2-5
2.4 Feature Description...................................................................................2-6
2.5 External Connectors .................................................................................2-8
Section 3
Device Programming............................................................................3-9
3.1 In-System Programming ...........................................................................3-9
3.2 Using a Programmer.................................................................................3-9
Section 4
Appendix.............................................................................................4-11
4.1 Electrical Schematics..............................................................................4-12
4.2 Component Placement ...........................................................................4-16
4.3 Mechanical Outlines................................................................................4-17
4.4 Bill of Materials........................................................................................4-17

AT89C5131A Starter Kit Hardware User Guide 1-1
Rev. 4245A–USB–11/04
Section 1
Introduction
This document describes the AT89C5131A Starter Kit Evaluation Board dedicated to
the AT89C5131A USB microcontroller. This board is designed to allow an easy evalua-
tion of the product using demonstration software (refer to Software Guide).
1.1 Features The AT89C5131A evaluation board provides the following features:
Possibility to choose between two packages for the AT89C5131A
– PLCC 52-pin package
– VQFP 64-pin package
On-board power supply circuitry
– from an external power connector
– from an external battery
– from the USB line via the USB on-board connector
On-board reset, INT0, LEDs, EA, ISP and programming interface
Power, ALE, RS232 Rx and Tx LEDs
External system clock connector
PCA clock connector
USB, TWI, SPI and RS232 hardware connectors
Two Connectors available for extended board

Introduction
1-2 AT89C5131A Starter Kit Hardware User Guide
4245A–USB–11/04
Figure 1-1. AT89C5131A Evaluation Board

Hardware Description
AT89C5131A Starter Kit Hardware User Guide 2-3
4245A–USB–11/04
Section 2
Hardware Description
2.1 Block Diagram
Figure 2-1. AT89C5131A Evaluation Board Components
AT89C5131A
Power
Supply USB TWI
SPI
RS232
LED
C51 Generic Board Interface
Reset
ISP
EA
INT0
Device
Device
Host,
Device
...
Human
C51 Generic Board
Programming
Specific Device
Interface

Hardware Description
2-4 AT89C5131A Starter Kit Hardware User Guide
4245A–USB–11/04
2.2 Power Supply The on-board power supply circuitry allows various power supply configurations.
The power source can be:
–V
BUS from USB (5V)
–V
BUS from USB (5V) through the current limiter
– External power supply (from 6 to 12V) or 9V battery
The voltage output can be the direct power source, regulated at 5V or 3.3V.
The power supply selection is performed using the JP2, JP3, JP4 and JP5 jumpers.
The power supply can be turned on/off using the “power” switch (SW6). Once the power
is established, the power LED (D9) is lit.
Figure 2-2. Different Power Configurations
LIM
REG
VBUS
5V
3.3V
ICC
PWR.S.
PWR
VCC
LIM
REG
VBUS
5V
3.3V
ICC
PWR.S.
PWR
VCC
LIM
REG
VBUS
5V
3.3V
ICC
PWR.S.
PWR
VCC
LIM
REG
VBUS
5V
3.3V
ICC
PWR.S.
PWR
VCC
LIM
REG
VBUS
5V
3.3V
ICC
PWR.S.
PWR
VCC
LIM
REG
VBUS
5V
3.3V
ICC
PWR.S.
PWR
VCC
LIM
REG
VBUS
5V
3.3V
ICC
PWR.S.
PWR
VCC
LIM
REG
VBUS
5V
3.3V
ICC
PWR.S.
PWR
VCC
LIM
REG
VBUS
5V
3.3V
ICC
PWR.S.
PWR
VCC
VBUS VBUS and
Current Limiter External
Direct Input
5V Regulate
3.3V Regulate
Power
Source
Regulation

Hardware Description
AT89C5131A Starter Kit Hardware User Guide 2-5
4245A–USB–11/04
2.3 C51 Standard
Settings
2.3.1 Reset The external Reset push-button (SW3) is provided to easily generate a warm reset. This
button is used for ISP process. The Reset applied is active low.
2.3.2 Clock A crystal can be easily installed on the Y1 socket. The clock can also be provided using
the J8 connector instead of the crystal.
Note: Remove the clock generators before the using the programmer.
2.3.3 EA Place a jumper on the EA connector (J10) to force the EA pin to ground and execute
external code. Otherwise internal code will be executed.
Figure 2-3. EA Circuitry
2.3.4 INT0 In order to use the on-board INT0 circuitry, connect the J7 Jumper to the AT89C5131A.
When you press the INT0 button (SW5), the P3.2 pin will go low which induces an inter-
rupt event.
Note: Remove the J7 jumper before using the programmer. Otherwise the program-
mer will not function.
Figure 2-4. INT0 Circuitry

Hardware Description
2-6 AT89C5131A Starter Kit Hardware User Guide
4245A–USB–11/04
2.4 Feature
Description
2.4.1 RS232 The AT89C5131A evaluation board includes all the required hardware to manage the
RS232 communication.
Figure 2-5. RS232 On-board Circuitry
2.4.2 USB Peripheral The AT89C5131A evaluation board provides all the required hardware to develop a
USB firmware for the AT89C5131A, this includes:
– a USB connector
– 2 test points on D+ and D-
– 1 test point on VBUS
– a USB UNLOAD button which allows to disconnect the pull-up on D+ and then
to simulate an Attach/Detach of the USB cable
The USB peripheral can also be used to perform an In-System Programming.

Hardware Description
AT89C5131A Starter Kit Hardware User Guide 2-7
4245A–USB–11/04
2.4.3 TWI Peripheral The CT3 and CT5 contacts have to be soldered in order to use the SDA and SCL alter-
nate P4.1 and P4.0 port configuration on the SPI connector (J4).
In order to use these signals on the J5 extension connector (SDA and SCL), the CT4
and CT6 contacts have to also be soldered.
2.4.4 SPI Peripheral
2.4.5 LED Controller The AT89C5131A controller includes an LED controller on:
– P3.3 (LED 0)
– P3.5 (LED 1)
– P3.6 (LED 2)
– P3.7 (LED 3)
The on board LEDs can be controlled with the AT89C5131A if the corresponding con-
tacts CT9, CT10, CT11 and CT12 are bypassed.
Figure 2-6. On-board LEDs for LED Controller
0
1
LED
3
2
CT9
CT10
CT11
CT12
LED 0
LED 1
LED 2
LED 3

Hardware Description
2-8 AT89C5131A Starter Kit Hardware User Guide
4245A–USB–11/04
2.5 External
Connectors These two external connectors to build a customer extended board easily.
Figure 2-7. Top View of J5 and J6 Connectors
P1.0
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
P3.0
P3.1
P3.2
P3.3
P3.4
P3.5
P3.6 - WR
P3.7 - RD
NC
NC
NC
NC
NC
NC
NC
NC
VCC
VSS
SDA
SCL
NC
RESET
EA
BP1
A16
NC
VSS
XTAL2
VSS
NC
NC
NC
NC
NC
NC
NC
NC
BUZZER
VSS
VSS
47
45
43
41
39
37
35
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
48
46
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
4.35 12V
4.35 12V
VSS
NC
NC
NC
NC
NC
NC
NC
NC
PSEN
VSS
ALE
P1.0 - KBD 0
P1.1 - KBD 1
P1.2 - KBD 2
P1.3 - KBD 3
P1.4 - KBD 4
P1.5 - KBD 5
P1.6 - KBD 6
P1.7 - KBD 7
VSS
VSS
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
P2.0
P2.1
P2.2
P2.3
P2.4
P2.5
P2.6
P2.7
P4.0
P4.1
NC
NC
NC
NC
NC
NC
47
45
43
41
39
37
35
33
31
29
27
25
23
21
19
17
15
13
11
9
7
5
3
1
48
46
44
42
40
38
36
34
32
30
28
26
24
22
20
18
16
14
12
10
8
6
4
2
J5 J6

AT89C5131A Starter Kit Hardware User Guide 3-9
Rev. 4245A–USB–11/04
Section 3
Device Programming
3.1 In-System
Programming The user memory of the AT89C5131A part can be programmed using the ISP mode of
the device. In order to enter in ISP mode, first select the high pin count mode (PSEN) or
the low pin count mode (P1.0) using the ISP switch (SW2).
To enter in ISP mode, press both the RESET (SW3) and ISP (SW4) buttons simulta-
neously. First release the RESET button and then the ISP button. The device enters in
ISP mode.
ISP can then be performed using the USB bus (or with the peripheral corresponding
with the bootloader version). The user may need to re-enumerate the USB bus using the
USB UNLOAD button (SW1) if the USB cable is already connected.
3.2 Using a
Programmer The AT89C5131A microcontroller can also be programmed using a programmer with
the J3 connector. Connect all required signals between the programmer and the J3 con-
nector and remove the J7 jumper to disconnect the EA circuitry. No clock should be
enabled on the board, except the clock coming from the J3 connector.
Figure 3-1. J3 Connector Schematic
1VCC
2VSS
3XTAL1
4VSS
5NC
6RST
7 P3.2 (Test0)
8VSS
9 P3.4 (Test1)
10 VSS
J3

AT89C5131A Starter Kit Hardware User Guide 4-11
Rev. 4245A–USB–11/04
Section 4
Appendix

Appendix
4-12 AT89C5131A Starter Kit Hardware User Guide
4245A–USB–11/04
4.1 Electrical Schematics
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
D+
D-
VREF
Vb
us
USB_CON_D-
USB_CON
_D+
PLLF
AV
DD
_SS
M
ISO
SCK
M
OSI
V-
V+
GND
Tx
_PC
Gen
eric_SCL
SDA
S
CL
TxD_
µC
R
xD_µC
Ge
neric_SDA
Vcc
TWI_CO
N_SDA
TWI_CON
_SCL
USB_CON
_D+
USB_CON_D-
AVSS
Vss
GND
R
xD_µC
TxD_
µC
TWI_CO
N_SDA
Vcc
Vss
XT
AL1
Vss
_RST
T
est0
Vss
T
est1
Vss
TWI_CON
_SCL
GND
GND
R
x_PC
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
VREF
D+
D-
Vbus
PLLF
AVDD
AVSS
P1_1
P1_5
P1_6
P1_7
P3_0
Vcc
P3_1
P4_1
P4_0
Gen
eric_SDA
Gen
eric_SCL
XT
AL1
_RST
P3_2
P3_4
T
itle
S
ize
Do
cument Number
Rev
Date:
S
heet
of
1
1
.0.2
AT89C5131 Evab_1.0
.2 - Bus
A
1
4
Frida
y, October 25, 2002
Vpp
R3
100
R8
4
.7 K
U1
MAX202ECSE
C1+
1
C1-
3
C2+
4
C2-
5
VCC
16
GND
15
V+
2
V-
6
R1OUT
12
R2OUT
9
T1IN
11
T2IN
10
R1IN
13
R2IN
8
T1OUT
14
T2OUT
7
D2
L
ED GREEN
Tx LED
CT6
CONTA
CT
1
2
R5
27
P1
RS232 Fe
male
5
9
4
8
3
7
2
6
1
C4
0.
1 µF
R1
1 K
J4
CO
NNECTOR SIP4 RA
TWI Ma
le
1
2
3
4
CT5
CONTACT
1
2
J1
USB B
1
2
3
4
CT2
CONTACT
1
2
C3
0.
1 µF
C1
10
nF
CT4
CONTA
CT
1
2
CT1
CONTACT
1
2
CT3
CONTACT
1
2
C6
0.
1 µF
R2
1
.5 K
D1
LED
RED
Rx
LED
C2
2.2
nF
C7
0.
1 µF
R6
1
K
R7
4
.7 K
TP2
D
- TP
1
SW1
USB Un
load
T
P1
D+
TP
1
J2
CO
NNECTOR SIP6 RA
SP
I Male
1
2
3
4
5
6
J3
LPC
Test Mode Male
1
2
3
4
5
6
7
8
9
10
C5
0.1
µF
R4
27
Electrical Schematics
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
D+
D-
VREF
Vbus
USB_CON_D-
USB_CON_D+
PLLF
AVDD
_SS MISO
SCK
MOSI
V- V+
GND
Tx_PC
Generic_SCL
SDA
SCL
TxD_µC RxD_µC
Generic_SDA Vcc
TWI_CON_SDA TWI_CON_SCL
USB_CON_D+
USB_CON_D-
AVSS
Vss
GND
RxD_µC
TxD_µC
TWI_CON_SDA
Vcc Vss
XTAL1
Vss
_RST Test0
Vss
Test1
Vss
TWI_CON_SCL
GND
GND
Rx_PC
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
Vcc
VREF
D+
D-
Vbus PLLF
AVDD
AVSS
P1_1
P1_5
P1_6 P1_7
P3_0
Vcc
P3_1
P4_1 P4_0 Generic_SDA
Generic_SCL
XTAL1 _RST P3_2 P3_4
Title Size Document Number Rev
Date: Sheet of
11.0.2 AT89C5131 Evab_1.0.2 - Bus
A
14Friday, October 25, 2002
Vpp
R3 100
R8 4.7 K
U1
MAX202ECSE
C1+
1
C1-
3
C2+
4
C2-
5
VCC 16
GND
15
V+ 2
V- 6
R1OUT 12 R2OUT 9
T1IN 11 T2IN 10
R1IN
13 R2IN
8
T1OUT
14 T2OUT
7
D2
LED GREEN
Tx LED
CT6 CONTACT
1 2
R5 27
P1
RS232 Female
5 9 4 8 3 7 2 6 1
C4 0.1 µF
R1
1 K
J4
CONNECTOR SIP4 RA TWI Male
1 2 3 4
CT5 CONTACT
1 2
J1
USB B
1 2 3 4
CT2 CONTACT
1 2
C3 0.1 µF
C1 10 nF
CT4 CONTACT
1 2
CT1 CONTACT
1 2
CT3 CONTACT
1 2
C6 0.1 µF
R2 1.5 K D1
LED RED Rx LED
C2 2.2 nF
C7 0.1 µF
R6 1 K
R7 4.7 K
TP2
D- TP
1
SW1
USB Unload
TP1
D+ TP
1
J2
CONNECTOR SIP6 RA
SPI Male
1 2 3
4
5 6
J3 LPC Test Mode Male
1 2 3 4 5 6 7 8 9 10
C5 0.1 µF
R4 27

Appendix
AT89C5131A Starter Kit Hardware User Guide 4-13
4245A–USB–11/04
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
BP1P3_3
P3_4
Buzzer A16
P1_7 P1_6 P1_5 P1_4 P1_0 P1_1 P1_2 P1_3 P3_0 P3_1 P3_2 P3_3 P3_4 P3_5 _WR
_RD
_RST_G
Buzzer
BP1
Vss Vss
Vcc_CPU
Vss
TWI_soft_scl
TWI_soft_sda
_EA
A16
Vss Vss
XTAL2
4.35_12V 4.35_12V
Vss
_PSEN
ALE
Vss
Keyb_0 P1_0 Keyb_1 P1_1 Keyb_2 P1_2 Keyb_3 P1_3 Keyb_4 P1_4 Keyb_6 P1_6 Keyb_5 P1_5 Keyb_7 P1_7
Vss Vss
P0_0 P0_1 P0_2 P0_3 P0_4 P0_5 P0_6 P0_7 P2_0 P2_1 P2_2 P2_3 P2_4 P2_5 P2_6 P2_7 P4_0 P4_1
P1_0 P1_1 P1_2 P1_3 P1_4 P1_5 P1_6 P1_7
P3_1 P3_2 P3_3 P3_4 P3_5 P3_6 P3_7 P3_0
_RST_G
Vss Vss
Vcc Vss
Generic_SDA Generic_SCL
_EA
Vss Vss
XTAL2_G _PSEN
ALE
Vss Vss Vss
4.35_12V 4.35_12V Vss
P4_0 P4_1 P0_0 P0_1 P0_2 P0_3 P0_4 P0_5 P0_6 P0_7 P2_0 P2_1 P2_2 P2_3 P2_4 P2_5 P2_6 P2_7
Title Size Document Number Rev
Date: Sheet of
11.0.2 AT89C5131 Evab_1.0.2 - C51 Generic Board Connectors
A
24Friday, October 25, 2002
J6 HEADER 24X2 C51 Generic Right
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
1 3 5 7 9
11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47
CT7 CONTACT
1 2
JP1
A16_Buzz Jumper
11
2
2
3
3
J5 HEADER 24X2 C51 Generic Left
2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48
1 3 5 7 9
11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 41 43 45 47

Appendix
4-16 AT89C5131A Starter Kit Hardware User Guide
4245A–USB–11/04
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
VSS
P0_1 P0_2 P0_3 P0_4 P0_5 P0_6 P0_7 P2_0 P2_1 P2_2 P2_3 P2_4 P2_5 P2_7 P2_6 ALE _EA _PSEN P3_7 P3_6 P3_5 P3_4 P3_3 P3_2
AVDD PLLF AVSS
P4_0 P4_1 P1_7 P1_5 P1_4 P1_3 P1_1 P1_0
_RST
XTAL1 XTAL2
P3_0 P3_1
VDD
P0_0VREF
D+ D-
_EA
P1_2 P1_6
P2_7
P2_1
P1_4
P2_6
_EA
P1_3
P1_2
ALE
P2_4
P1_1
P3_0
P4_0
P3_5
P4_1
P1_6
P1_5
XTAL1 P2_3
P1_7
P3_3
VDD
P2_0
D-
AVSS P2_5
P2_2
P3_2
VREF
P0_0_PSEN
P3_4
D+
PLLF
AVDD
P1_0
XTAL2
XTAL2
ECI P1_2XTAL1
ALE_L
LED0P3_3 LED1P3_5
LED2P3_6
LED3P3_7
Vss
_RST_SW
Vcc
Vss
XTAL1
P3_2
Vss
P3_1
_PSEN P1_0
XTAL2_GXTAL2 _RST_G_RST
ALE_LALE
UCAP
UCAP
UCAP
Vcc
Vcc
Vcc Vcc
Vcc
Vcc
Vcc
Vcc Vcc
Vcc
P0_0 P0_1 P0_2 P0_3 P0_4 P0_5 P0_6 P0_7 P2_0 P2_1 P2_2 P2_3 P2_4 P2_5 P2_6 P2_7 ALE _EA _PSEN P3_7 P3_6 P3_5 P3_4 P3_3 P3_2
VREF D+ D- AVDD PLLF AVSS P4_0 P4_1 P1_7 P1_6 P1_5 P1_4 P1_3 P1_2 P1_1 P1_0 _RST P3_0 P3_1
Vss
Vcc
XTAL1
_RST
XTAL2_G _RST_G
Title Size Document Number Rev Date: Sheet of
1 1.0.2
AT89C5131 Evab_2.0.0- CPU
A
34Thursday, May 13, 2004
Title Size Document Number Rev Date: Sheet of
1 1.0.2
AT89C5131 Evab_2.0.0- CPU
A
34Thursday, May 13, 2004
Title Size Document Number Rev Date: Sheet of
1 1.0.2
AT89C5131 Evab_2.0.0- CPU
A
34Thursday, May 13, 2004
Not Mounted for v2.0.0
Closed for v2.0.0
Closed for v2.0.0
C14 10 nF C14 10 nF
MR
1
VCC
2
GND 3
PFI
4PFO 5
RST 7 RST 8
U2 MAX708SCSA U2 MAX708SCSA
1 2
CT13 CONTACT CT13 CONTACT
R13 1 K R13 1 K
1 2
CT8 CONTACTCT8 CONTACT
D7
LED REDALE
D7
LED REDALE
1 2
CT11CONTACTCT11CONTACT
P2.0/A8/D8 56
P2.1/A9/D9 57
P2.2/A10/D10 58
P1.5/CEX2/KIN5/MISO 59
P1.6/CEX3/KIN6/SCK 60
P1.7/CEX4/KIN7/MOSI 61
P4.0/SCL 62
P4.1/SDA 63
P2.3/A11/D11
2
P2.4/A12/D12
3
P2.5/A13/D13
4
XTAL2
5
XTAL1
6
P2.6/A14/D14
7
P2.7/A15/D15
8
VDD
9
AVDD
10
UCAP
11
AVSS
12
P3.0/RxD
14
PLLF
19
D-
20
D+
21
VREF
22
UVSS
23
EA
24
ALE
25
PSEN
26
P3.1/TxD
27
P3.2/INT0
28
P3.3/INT1/LED0
29
P3.4/T0
30
P3.5/T1/LED1
31
nc11 34
P3.6/WR/LED2 35
P0.7/AD7/D7 36 P0.6/AD6/D6 37 P0.5/AD5/D5 38
P3.7/RD/LED3 39
P0.4/AD4/D4 40
VSS 42
P0.3/AD3/D3 43
RST 44
P0.2/AD2/D2 45 P0.1/AD1/D1 46
nc13 47
P0.0/AD0/D0 55
P1.4/CEX1/KIN4 54
P1.3/CEX0/KIN3 53
P1.2/ECI/KIN2 52
P1.1/T2EX/KIN1/SS 51
P1.0/T2/KIN0 50
nc16 64
nc1
1
nc15 49
nc14 48 nc12 41 nc10 33
nc9
32
nc7
18 nc6
17
nc5
16 nc4 15
nc3
13
U5
AT89C5131A-M_64
U5
AT89C5131A-M_64
C11 22 pF C11 22 pF
C8
0.1 µF
C8
0.1 µF
C22
1µF
C22
1µF
1
2
J8
SYS CLK
J8
SYS CLK
Y1 CRYSTAL Y1 CRYSTAL
1 2
J7
INT0
J7
INT0
1 2
CT14 CONTACT CT14 CONTACT
C21 1 µF C21 1 µF
C9
100 nF
C9
100 nF
1 2
CT9 CONTACTCT9 CONTACT
C12 22 pF C12 22 pF
R9 4.7 K R9 4.7 K
1 2
J10 EA J10 EA
D3
LED PWR GREENLED0
D3
LED PWR GREENLED0
SW3 RESET SW3 RESET
SW5 INT0 SW5 INT0
R12
10 K
R12
10 K D6
LED PWR GREENLED3
D6
LED PWR GREENLED3
C10 10 nF C10 10 nF
1 2
CT10CONTACTCT10CONTACT
C13
100 nF
C13
100 nF
P2.0/A8/D8 1 P2.1/A9/D9 2
P2.2/A10/D10 3
P1.5/CEX2/KIN5/MISO
4P1.6/CEX3/KIN6/SCK 5P1.7/CEX4/KIN7/MOSI 6
P4.0/SCL
7
P4.1/SDA
8
P2.3/A11/D11 9 P2.4/A12/D12 10 P2.5/A13/D13 11
XTAL2
12 XTAL1 13
P2.6/A14/D14 14 P2.7/A15/D15 15
VDD 16
AVDD
17
UCAP
18
AVSS
19
P3.0/RxD
20
PLLF
21
D-
22 D+ 23 VREF 24
UVSS
25
EA 26
ALE 27
PSEN 28
P3.1/TxD
29 P3.2/INT0 30
P3.3/INT1/LED0 31
P3.4/T0 32
P3.5/T1/LED1 33
nc3 34
P3.6/WR/LED2 35
P0.7/AD7/D7 36 P0.6/AD6/D6 37 P0.5/AD5/D5 38
P3.7/RD/LED3 39
P0.4/AD4/D4 40
VSS
41
P0.3/AD3/D3 42
RST
43
P0.2/AD2/D2 44 P0.1/AD1/D1 45
nc4 46
P0.0/AD0/D0 52
P1.4/CEX1/KIN4
51
P1.3/CEX0/KIN3
50
P1.2/ECI/KIN2
49
P1.1/T2EX/KIN1/SS
48
P1.0/T2/KIN0
47
U3
AT89C5131_52
U3
AT89C5131_52
R10 2.2 K R10 2.2 K
SW2 ISP SwitchSW2 ISP Switch
D5
LED PWR GREENLED2
D5
LED PWR GREENLED2
1
2
J9
PCA CLK
J9
PCA CLK
D4
LED PWR GREENLED1
D4
LED PWR GREENLED1
R11 10 K R11 10 K
SW4 ISP SW4 ISP

Appendix
AT89C5131A Starter Kit Hardware User Guide 4-17
4245A–USB–11/04
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
VSS
P0_1 P0_2 P0_3 P0_4 P0_5 P0_6 P0_7 P2_0 P2_1 P2_2 P2_3 P2_4 P2_5 P2_7 P2_6 ALE _EA _PSEN P3_7 P3_6 P3_5 P3_4 P3_3 P3_2
AVDD PLLF AVSS
P4_0 P4_1 P1_7 P1_5 P1_4 P1_3 P1_1 P1_0
_RST
XTAL1 XTAL2
P3_0 P3_1
VDD
P0_0VREF
D+ D-
_EA
P1_2 P1_6
P2_7
P2_1
P1_4
P2_6
_EA
P1_3
P1_2
ALE
P2_4
P1_1
P3_0
P4_0
P3_5
P4_1
P1_6
P1_5
XTAL1 P2_3
P1_7
P3_3
VDD
P2_0
D-
AVSS P2_5
P2_2
P3_2
VREF
P0_0_PSEN
P3_4
D+
PLLF
AVDD
P1_0
XTAL2
XTAL2
ECI P1_2XTAL1
ALE_L
LED0P3_3 LED1P3_5
LED2P3_6
LED3P3_7
Vss
_RST_SW
Vcc
Vss
XTAL1
P3_2
Vss
P3_1
_PSEN P1_0
XTAL2_GXTAL2 _RST_G_RST
ALE_LALE
UCAP
UCAP
UCAP
Vcc
Vcc
Vcc Vcc
Vcc
Vcc
Vcc
Vcc Vcc
Vcc
P0_0 P0_1 P0_2 P0_3 P0_4 P0_5 P0_6 P0_7 P2_0 P2_1 P2_2 P2_3 P2_4 P2_5 P2_6 P2_7 ALE _EA _PSEN P3_7 P3_6 P3_5 P3_4 P3_3 P3_2
VREF D+ D- AVDD PLLF AVSS P4_0 P4_1 P1_7 P1_6 P1_5 P1_4 P1_3 P1_2 P1_1 P1_0 _RST P3_0 P3_1
Vss
Vcc
XTAL1
_RST
XTAL2_G _RST_G
Title Size Document Number Rev Date: Sheet of
1 1.0.2
AT89C5131 Evab_2.0.0- CPU
A
34Thursday, May 13, 2004
Title Size Document Number Rev Date: Sheet of
1 1.0.2
AT89C5131 Evab_2.0.0- CPU
A
34Thursday, May 13, 2004
Title Size Document Number Rev Date: Sheet of
1 1.0.2
AT89C5131 Evab_2.0.0- CPU
A
34Thursday, May 13, 2004
Not Mounted for v2.0.0
Closed for v2.0.0
Closed for v2.0.0
C14 10 nF C14 10 nF
MR
1
VCC
2
GND 3
PFI
4PFO 5
RST 7 RST 8
U2 MAX708SCSA U2 MAX708SCSA
1 2
CT13 CONTACT CT13 CONTACT
R13 1 K R13 1 K
1 2
CT8 CONTACTCT8 CONTACT
D7
LED REDALE
D7
LED REDALE
1 2
CT11CONTACTCT11CONTACT
P2.0/A8/D8 56
P2.1/A9/D9 57
P2.2/A10/D10 58
P1.5/CEX2/KIN5/MISO 59
P1.6/CEX3/KIN6/SCK 60
P1.7/CEX4/KIN7/MOSI 61
P4.0/SCL 62
P4.1/SDA 63
P2.3/A11/D11
2
P2.4/A12/D12
3
P2.5/A13/D13
4
XTAL2
5
XTAL1
6
P2.6/A14/D14
7
P2.7/A15/D15
8
VDD
9
AVDD
10
UCAP
11
AVSS
12
P3.0/RxD
14
PLLF
19
D-
20
D+
21
VREF
22
UVSS
23
EA
24
ALE
25
PSEN
26
P3.1/TxD
27
P3.2/INT0
28
P3.3/INT1/LED0
29
P3.4/T0
30
P3.5/T1/LED1
31
nc11 34
P3.6/WR/LED2 35
P0.7/AD7/D7 36 P0.6/AD6/D6 37 P0.5/AD5/D5 38
P3.7/RD/LED3 39
P0.4/AD4/D4 40
VSS 42
P0.3/AD3/D3 43
RST 44
P0.2/AD2/D2 45 P0.1/AD1/D1 46
nc13 47
P0.0/AD0/D0 55
P1.4/CEX1/KIN4 54
P1.3/CEX0/KIN3 53
P1.2/ECI/KIN2 52
P1.1/T2EX/KIN1/SS 51
P1.0/T2/KIN0 50
nc16 64
nc1
1
nc15 49
nc14 48 nc12 41 nc10 33
nc9
32
nc7
18 nc6
17
nc5
16 nc4 15
nc3
13
U5
AT89C5131A-M_64
U5
AT89C5131A-M_64
C11 22 pF C11 22 pF
C8
0.1 µF
C8
0.1 µF
C22
1µF
C22
1µF
1
2
J8
SYS CLK
J8
SYS CLK
Y1 CRYSTAL Y1 CRYSTAL
1 2
J7
INT0
J7
INT0
1 2
CT14 CONTACT CT14 CONTACT
C21 1 µF C21 1 µF
C9
100 nF
C9
100 nF
1 2
CT9 CONTACTCT9 CONTACT
C12 22 pF C12 22 pF
R9 4.7 K R9 4.7 K
1 2
J10 EA J10 EA
D3
LED PWR GREENLED0
D3
LED PWR GREENLED0
SW3 RESET SW3 RESET
SW5 INT0 SW5 INT0
R12
10 K
R12
10 K D6
LED PWR GREENLED3
D6
LED PWR GREENLED3
C10 10 nF C10 10 nF
1 2
CT10CONTACTCT10CONTACT
C13
100 nF
C13
100 nF
P2.0/A8/D8 1 P2.1/A9/D9 2
P2.2/A10/D10 3
P1.5/CEX2/KIN5/MISO
4P1.6/CEX3/KIN6/SCK 5P1.7/CEX4/KIN7/MOSI 6
P4.0/SCL
7
P4.1/SDA
8
P2.3/A11/D11 9 P2.4/A12/D12 10 P2.5/A13/D13 11
XTAL2
12 XTAL1 13
P2.6/A14/D14 14 P2.7/A15/D15 15
VDD 16
AVDD
17
UCAP
18
AVSS
19
P3.0/RxD
20
PLLF
21
D-
22 D+ 23 VREF 24
UVSS
25
EA 26
ALE 27
PSEN 28
P3.1/TxD
29 P3.2/INT0 30
P3.3/INT1/LED0 31
P3.4/T0 32
P3.5/T1/LED1 33
nc3 34
P3.6/WR/LED2 35
P0.7/AD7/D7 36 P0.6/AD6/D6 37 P0.5/AD5/D5 38
P3.7/RD/LED3 39
P0.4/AD4/D4 40
VSS
41
P0.3/AD3/D3 42
RST
43
P0.2/AD2/D2 44 P0.1/AD1/D1 45
nc4 46
P0.0/AD0/D0 52
P1.4/CEX1/KIN4
51
P1.3/CEX0/KIN3
50
P1.2/ECI/KIN2
49
P1.1/T2EX/KIN1/SS
48
P1.0/T2/KIN0
47
U3
AT89C5131_52
U3
AT89C5131_52
R10 2.2 K R10 2.2 K
SW2 ISP SwitchSW2 ISP Switch
D5
LED PWR GREENLED2
D5
LED PWR GREENLED2
1
2
J9
PCA CLK
J9
PCA CLK
D4
LED PWR GREENLED1
D4
LED PWR GREENLED1
R11 10 K R11 10 K
SW4 ISP SW4 ISP

Appendix
4-18 AT89C5131A Starter Kit Hardware User Guide
4245A–USB–11/04
5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
l
imiter_in
Power Supp
ly 2
PO
WER
REG_
IN
R
EG_OUT
Vcc
GND
GND
Vb
us
REG_
IN
Power
Power Supp
ly 1
PO
WER
9V
Power Su
pply
limi
ter_out
over_limit
er
Power Su
pply
Power Su
pply
REG_FB
Vb
us
R
EG_OUT
REG_FB
V
cc
4
.35_12V
Vb
us
T
itle
S
ize
Do
cument Number
Rev
Date:
S
heet
of
1
1
.0.2
AT89C5131 Evab_1.
0.2 - POWER
A
4
4
Frida
y, October 25, 2002
T
P3
Vcc
TP
1
U9
LM108
4/TO263
IN
3
OUT
2
ADJ
1
J
P3
Power S
ource Jumper
1
2
3
4
5
6
J
P4
Regulator
Jumper
11
2
2
3
3
R22
196-
1%
J
12
Cha
rge
1
2
D9
LED
RED
Power
R
19
1
K
C
19
1
0 µF
R21
365-
1%
J
11
C
ONNECTOR SIP2
9V M
ale
1
2
J
P5
Vcc
Level jumper
1
1
2
2
33
CT12
CONTACT
1
2
J13
CON
NECTOR JACK PWR
3
2
1
D8
MRA4007
1
2
T
P4
Vbus TP
1
C
18
10
µF TANTAL.
U6
TPS2
041AD
GND
1
IN1
2
IN2
3
EN
4
OC
5
OUT1
6
OUT2
7
OUT3
8
SW6
Power Switch
C
17
0.
1 µF
T
P5
GND
TP1
1
R15
180
D
10
1N
4002
1
2
R
14
10
K
C
16
1
0 µF
C
20
0.1
µF
-+
U8
D
F005S
1
3
2
4
C15
0.1
µF
T
P6
GND
TP2
1
J
P2
Limiter J
umper
11
2
2
3
3
D
11
S
MBJ9.0A
R
20
121-
1%
5 5
4 4
3 3
2 2
1 1
D D C C B B A A
limiter_in
Power Supply 2
POWER
REG_IN
REG_OUTVcc
GNDGND
Vbus
REG_IN
Power
Power Supply 1
POWER
9V
Power Supply
limiter_out
over_limiter
Power Supply
Power Supply
REG_FB
Vbus
REG_OUT
REG_FB
Vcc
4.35_12V
Vbus
Title Size Document Number Rev
Date: Sheet of
11.0.2 AT89C5131 Evab_1.0.2 - POWER
A
44Friday, October 25, 2002
TP3
Vcc
TP
1
U9 LM1084/TO263
IN
3OUT 2
ADJ
1
JP3 Power Source Jumper
1 2 3 4 5 6
JP4
Regulator Jumper
11
2
2
3
3
R22
196-1%
J12
Charge
1 2
D9
LED RED
Power
R19 1 K
C19 10 µF R21
365-1%
J11 CONNECTOR SIP2
9V Male
1 2
JP5
Vcc
Level jumper
1
1
2
2
33
CT12CONTACT
1 2
J13
CON
NECTOR JACK PWR
3 2 1
D8 MRA4007
1 2
TP4
Vbus TP
1
C18 10 µF TANTAL.
U6
TPS2041AD
GND
1
IN1
2IN2 3
EN
4OC 5OUT1 6
OUT2 7 OUT3 8
SW6
Power Switch C17
0.1 µF
TP5
GND TP1
1
R15
180
D10 1N4002
12
R14 10 K
C16 10 µF
C20 0.1 µF
-+
U8
DF005S
1
3
2
4
C15
0.1 µF
TP6
GND TP2
1
JP2Limiter Jumper
11
2
2
3
3
D11
SMBJ9.0A R20
121-1%

Appendix
AT89C5131A Starter Kit Hardware User Guide 4-19
4245A–USB–11/04
4.2 Component
Placement Figure 4-1. AT89C5131A Evaluation Board Overview
Figure 4-2. AT89C5131A Evaluation Board Component Implementation
MISO
_SS
SCK
MOSI
SPI
VCC
GND
SDA
SCL
TWI
PCA
RX TX
RS232
CHIP
CONN
GEN
TWI
0
1
LED
D+ D-
USB
BATT
BUZZ
SYS
CLK LPC TEST MODE
ISP
RST
INT0
POWER
ON
OFF
EA
ALE
PWR
VCC
VBUS
GND
CRYSTAL
GND
USB
UNLOAD
LIM
REG
VBUS
5V
3.3V
ICC
PWR.S.
PWR
12
34
56
78
910
12
13 14
15 16
17 18
19 20
21 22
23 24
25 26
27 28
30
32
34
36
37 38
39
41
43
45
47
A16
+-
AT89C5131A Evab 1.0.2
VCC
INT1
29
31
33
35
11
GND
9V
3
2
VCC
P1.0
PSEN
1
1
J2 J4
J11
P1 J1 J13
J9
J8 J3
J5 J6
CT1 CT2
CT4
CT6
CT3
CT5 D1 D2
TP1 TP2
J12
CT7
CT9
CT10
CT11
CT12
D3
D4
D5
D6
JP2 JP3
JP4 JP5
TP6
U3
U5
Y1
SW1
JP1
SW4
J7
SW5 SW3
J10
SW6
D7
D9
CT13
TP4
TP3 TP5
1
234 56 7
89
10 11
12 13
14 15
16 17
18 1920 21
22 23
24 25
26 27
28 2930 3132 3334 3536 37
38 3940 41
42 43
44 4546 47
48
1
234 56 7
89
10 11
12 13
14 15
16 17
18 1920 21
22 23
24 25
26 27
28 2930 3132 3334 3536 37
38 3940 41
42 43
44 4546 47
48
12345 123
1
2
3
12
34
1
2
3
1
2
3
1
1
1
2
3
56
SW2
64

Appendix
4-20 AT89C5131A Starter Kit Hardware User Guide
4245A–USB–11/04
4.3 Mechanical
Outlines Figure 4-3. AT89C5131A Evaluation Board Mechanical Outlines
4.4 Bill of Materials
6.35 mm
C51 Generic Board’s
Top view
TOP
BOTTOM
LEFT
2.54 mm
93.98 mm (37*2.54 mm)
RIGHT
5.08 mm
5.08 mm
75 mm
99.06 mm
Right connector
C51 Generic Board’s
Left connector
2.54 mm
2.54 mm
7.00 mm
Table 4-1. Bill of Materials
Reference Part
C11, C12 22 pF
C2 2.2 nF
C1, C10, C14 10 nF
C9, C13 100 nF
C3, C4, C5, C6,
C7, C8, C15, C17,
C20, C21
0.1 µF
C16, C19 10 µF
R4, R5 27
R3 100
R15 180
R1, R6, R13, R19 1K
R2 1.5K
R10 2.2K
R7, R8, R9 4.7K
R11, R12, R14 10K

Appendix
AT89C5131A Starter Kit Hardware User Guide 4-21
4245A–USB–11/04
D2 LED GREEN
D1, D7, D9 LEDs RED
D3, D4, D5, D6 LEDs PWR GREEN
D8 MRA4007
D11 SMBJ9.0A
U1 MAX202ECSE
U8 DF005S
TP1, TP2, TP3,
TP4, TP5, TP6 TEST POINTS
J7, J10, J12 JUMPER
J13 CONNECTOR JACK PWR
J8, J9 CONNECTORS BNC
P1 SUB-D9 FEMALE
J1 USB B
J6, J5 HEADER 24X2
J11 CONNECTOR SIP2
J4 CONNECTOR SIP4 RA
J2 CONNECTOR SIP6 RA
J3 CONNECTOR HE10
SW2, SW6 SW KEY-SPDT
U3 AT89C5131A_52
U5 AT89C5131A_VQFP64
CT1, CT2, CT3,
CT4, CT5, CT6,
CT7, CT8, CT9,
CT10, CT11,
CT12, CT13,
CT14
CONTACT
C18 10 µF TANTAL
D10 1N4002
JP1 A16_Buzz Jumper
JP2 Limiter Jumper
JP3 Power Source Jumper
JP4 Regulator Jumper
JP5 VCC Level jumper
R20 121-1%
R21 365-1%
R22 196-1%
SW1 CONTACT BREAKER
Table 4-1. Bill of Materials (Continued)
Reference Part