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PC755 Datasheet(PDF) 35 Page - ATMEL Corporation

Part # PC755
Description  PowerPC 755/745 RISC Microprocessor
PDF  50 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

PC755 Datasheet(HTML) 35 Page - ATMEL Corporation

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35
PC755/745
2138D–HIREL–06/03
Figure 23. JTAG Interface Connection
Notes:
1. RUN/STOP, normally found on pin 5 of the COP header, is not implemented on the PC755. Connect pin 5 of the COP
header to OV
DD with a 10 kΩ pull-up resistor.
2. Key location; pin 14 is not physically present on the COP header.
3. Component not populated. Populate only if debug tool does not drive QACK.
4. Populate only if debug tool uses an open-drain type output and does not actively deassert QACK.
5. If the JTAG interface is implemented, connect HRESET from the target source to TRST from the COP header though an
AND gate to TRST of the part. If the JTAG interface is not implemented, connect HRESET fromthe target source to TRST of
the part through a 0
Ω isolation resistor.
HRESET
HRESET
From Target
Board Sources
13
SRESET
SRESET
SRESET
NC
NC
11
VDD_SENSE
6
5 1
15
2k
Ω
10 k
Ω
10 k
Ω
10 k
Ω
OVDD
OVDD
OVDD
OVDD
CHKSTP_IN
CHKSTP_IN
8
TMS
TDO
TDI
TCK
TMS
TDO
TDI
TCK
9
1
3
4
TRST
7
16
2
10
12
(if any)
14 2
Key
QACK
OVDD
OVDD
10 k
Ω
OVDD
TRST
10 k
Ω
OVDD
10 k
Ω
10 k
Ω
QACK
QACK
CHKSTP_OUT
CHKSTP_OUT
3
13
9
5
1
6
10
2
15
11
7
16
12
8
4
KEY
No pin
COP Connector
Physical Pin Out
10 k
Ω 4
OVDD
1
2k
Ω 3
0
Ω 5
HRESET



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