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TMS374 family in-circuit programming
Users Manual
Rev. 1.3
2005.05.11
P/C: 3-001-0002
© 2004
TMT
Revision History
Revision
Date
Description of Changes
1.0
2004.11.17
Initial revision
1.1
2004.11.23
Added TMS374 with Am29F010A PLCC ROM target connection
1.2
2004.11.26
Added TMS374 with M28F256 and M27C256B PLCC ROM target
connection
1.3
2005.05.11
Added Magneti Marelli IAW 1AP.80 target connection
TMS374 family in-circuit programming
Users manual
© 2004
TMT
P/C: 3-001-0002
2
TABLE OF CONTENS
1. INTRODUCTION…………………………………….. 4
2. REQUIREMENTS......................................................... 4
3. TARGET CONNECTION............................................ 5
3.1. ICP Interface……….……………………………………. 5
3.2. TMS374 with DIP ROM …………………………………6
3.3. TMS374 with PLCC ROM ……………………………… 7
3.4. TMS374 with Am29F010A PLCC ROM………………... 8
3.5. TMS374 with M28F256 and M27C256 PLCC ROM…… 9
3.6. Magneti Marelli IAW 1AP.80…………………………… 10
TMS374 family in-circuit programming
Users manual
© 2004
TMT
P/C: 3-001-0002
3
1. INTRODUCTION
This manual will guide you through the installation and operation of the
XPROG-m with TMS374 in-circuit programming (ICP) adapter. The
TMS374 ICP adapter has been designed for Reading, Programming of
TMS374 internal EEPROM contents.
2. REQUIREMENTS
The following describes what items are required for TMS374 in-circuit
programming.
• XPROG-m programmer board (P/C: 1-001-0002)
• TMS374 family in-circuit programming adapter (P/C: 1-002-0008)
• Power supply 15Vdc/300mA
• Device Programmer Desktop V4.2 or higher (P/C: 2-001-0001)
• TMS370/TMS374 family authorization (P/C: 2-002-0005)
Figure 1. shows system preparation for TMS374 in-circuit programming.
RS232 or USB
RS232 cable
Power Supply
15Vdc/300mA
XPROG-m programmer
board
PC
TMS374 ICP
adapter
MCU
(TMS374Cxxxx)
ROM
(PLCC or DIP)
Target TMS374 System
COM/USB
Figure 1. System preparation
TMS374 family in-circuit programming
Users manual
© 2004
TMT
P/C: 3-001-0002
4
3. TARGET CONNECTION
This section contains overall information about ICP interface and description
how to connect TMS374 MCU family.
3.1.
ICP interface
AD6
AD4
AD2
Signal name
AD0
SYNC
RESET
Vcc
In-Circuit Programming interface is basic for TMS374 ICP adapter. With
this interface XPROG-m can access internal MCU EEPROM memory for
reading and programming. Figure 2. and Table 1 shows ICP connector
signals and descriptions.
Description
AD7
Target MCU EEPROM write
protection override signal.
Vcc
Target MCU power supply
+5V/100mA
GND
AD5
Target MCU RESET pin
VppR**
AD3
Target MCU synchronization
pin
RESET
AD1
Target MCU external clock
SYNC
CLK
Address/Data input/output pins
CLK*
GND
VppR
AD0…AD7
Signal and power ground
* In some cases requires 2K series resistor.
** This signal is not required in Read mode. In
Write mode this signal is required if EEPROM is
programming protected. Dependence on target
system the EEPROM is programming protected or
not.
Figure 2. The ICP connector
TMS374 family in-circuit programming
Users manual
Table 1. Signals description
© 2004
TMT
P/C: 3-001-0002
5
3.2.
TMS374 with DIP ROM
RESET
VppR
Disconnect these pins
from board
SYNC
TMS374
CLK
Oscilator
Vcc
ROM/EPROM DIP28
AD0
AD1
AD2
1
2
3
4
5
6
7
8
9
10
11
D0
12
D1
13
D2
14
GND
OE
D7
D6
D5
D4
D3
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Vcc
Connect this pin to Vcc
If this pin connected
to GND disconnect it !
AD7
AD6
AD5
AD4
AD3
GND
TMS374 family in-circuit programming
Users manual
© 2004
TMT
P/C: 3-001-0002
6
3.3.
TMS374 with PLCC ROM
RESET
VppR
Disconnect these pins
from board
SYNC
TMS374
CLK
Oscilator
ROM PLCC
Vcc
AD0
Connect this pin to Vcc
If this pin connected
to GND disconnect it !
AD7
AD1
AD6
AD5
AD2
AD4
GND
AD3
TMS374 family in-circuit programming
Users manual
© 2004
TMT
P/C: 3-001-0002
7
3.4.
TMS374 with Am29F010A PLCC ROM
RESET
VppR
Disconnect these pins
from board
SYNC
TMS374
CLK
Oscilator
AD0
Am29F010B
Vcc
Disconnect this pin
from board and connect to Vcc
AD7
AD1
AD2
GND
AD6
AD5
AD4
AD3
TMS374 family in-circuit programming
Users manual
© 2004
TMT
P/C: 3-001-0002
8
3.5.
TMS374 with M28F256 and M27C256 PLCC ROM
RESET
VppR
Disconnect these pins
from board
SYNC
TMS374
CLK
Oscilator
M28F256
M27C256B
Vcc
AD0
AD7
AD1
AD2
AD6
AD5
GND
AD4
AD3
TMS374 family in-circuit programming
Users manual
© 2004
TMT
P/C: 3-001-0002
9
3.6.
Magneti Marelli IAW 1AP.80
RESET
VppR
Disconnect these pins
from board
SYNC
TMS374CD13APQQ
Disconnect this pin
from board
CLK
VCC
AD7
AD1
AD2
GND
AD6
AD5
M
AD0
HERMESPLUS
M28F512
VCC
AD4
AD3
TMS374 family in-circuit programming
Users manual
© 2004
TMT
P/C: 3-001-0002
10