Debug Header
3-11
3.8 Debug Header
In addition to the COP/JTAG interface, the BajaPPC-750 has a debug header at
HDR4 on the back of the board to provide easy access to the following signals:
The signals for the debug header are defined as follows:
Table 3-7. Debug Header Pin Assignments (HDR4)
Pin Signal
Pin
Signal
1
ARTRY*
2
TA*
3
TS*
4
TEA*
5
AACK*
6
MCP*
7
TT0
8
TSIZ0
9
TT1
10
TSIZ1
11
TT2
12
TSIZ2
13
TT3
14
BG*
15
TT4
16
TBST*
ARTRY*
Address Retry. Refer to the processor’s user manual for details.
TA*
Transfer Acknowledge. This signal acknowledges the successful comple-
tion of a data transfer.
TS*
Transfer Start. This signal indicates that a bus transaction is starting.
TEA*
Transfer Error Acknowledge. This signal terminates a transfer error.
AACK*
Address Acknowledge. This signal terminates the address phase of trans-
action.
MCP*
Machine Check Interrupt. Refer to the processor’s user manual for
details.
TT0–TT4
Transfer Type. Refer to the processor’s user manual for details.
TSIZ0–TSIZ2
Transfer Size. Refer to the processor’s user manual for details.
BG*
Bus Grant. This is the processor bus grant signal.
TBST*
Transfer Burst. Refer to the processor’s user manual for details.
Содержание BajaPPC-750
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