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Motorola M68ICS08AB User Manual page 28

In-circuit simulator hardware

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CHAPTER 2 – HARDWARE INSTALLATION
2.2
CONFIGURING THE IN-CIRCUIT SIMULATOR BOARD
Three configuration headers provide for jumper-selectable hardware options.
Table 2-1, Table 2-2, and Table 2-3 describe these settings.
Note: Factory default settings should be used when following the quick start
procedure described in Section 1.6 HARDWARE QUICK START
INSTRUCTIONS.
Table 2-1. W9 Configuration Header – DTR switch on-board regulator
Pin
1
2
Table 2-2. W3 Configuration Header – Target Cable Reset Pin Function
Pin
1
2
3
2-2
Signal Name
RS-232 handshaking DTR signal
PGMRL
To target V
GND
Jumper on pins 1 and 2
On-board regulator always turn on.
Jumper off
Default. On-board regulator can be activated by DTR.
Signal
Direction
Name
in
RST_IN*
in or out
RST*
out
RST_OUT*
Jumper on pins 2 and 3
Default. The target-system's RESET* is not allowed to reset the
MC68ICS08AB MCU.
Description
pin
DD
Description
Reset signal from target system: 0 to +5.0
Vdc input to control state of MCU RST* signal
To/from target RST* pins
Reset signal to target system: 0 to +5.0 Vdc
output reflecting state of MCU RST* signal
M68ICS08ABUM/D

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