Interfaces For Production Tests - GE MAC 1200 Servicing Instructions

GE Medical Systems MAC 1200 V 1.2 Page 24
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2.5.2.7 Interfaces for production tests
Debug Port
The debug port is an interface for developing purposes. With the corresponding tools, the
MPC821 can be set to the debug mode, to show internal states.
Connector denotation: BDM/
Type: male connector, 2x 5- pin, 180 °
JTAG Port
The JTAG is an interface for the production test of the processor core and the memory. in
addition, the Flash memories can be programmed with this interface.
Connector denotation: JTAG/
Type: male connecior, 2x 5-pin, 180 °, pin 7: coding pin
The function of the individual pins is given in the following table. The definition as an
input/output is seen with reference to PCB Control CS CI.
JTAG/
Pin input/output | Function Definition
Number
1 TM AG Test
TR: | for
| f o r JTAI
GM
TCK C
ND nd
EN ut SET :
WE0_IORD Bi-direct Write Enable Flash "0" : Write enable
m ・
In Circuit Programming Port
With the In Circuit Programming Port, both CPLDs can be programmed or updated in a
Daisy Chain queue.