mpc8640 Freescale Semiconductor, Inc, mpc8640 Datasheet - Page 124

• Manufacturer Part Number: mpc8640
• Description: Integrated Host Processor
• Manufacturer: Freescale Semiconductor, Inc

System Design Information
124
2. Populate this with a 10 Ω resistor for short-circuit/current-limiting protection.
3. The KEY location (pin 14) is not physically present on the COP header.
4. Although pin 12 is defined as a No-Connect, some debug tools may use pin 12 as an additional GND pin for
5. This switch is included as a precaution for BSDL testing. The switch should be open during BSDL testing to avoid
1. The COP port and target board should be able to independently assert HRESET and TRST to the processor
Notes:
COP Connector
improved signal integrity.
accidentally asserting the TRST line. If BSDL testing is not being performed, this switch should be closed or removed.
Physical Pinout
in order to fully control the processor as shown here.
13
15
11
Board Sources
1
1
3
5
7
9
No pin
From Target
KEY
10
12
16
4
6
8
2
MPC8640 and MPC8640D Integrated Host Processor Hardware Specifications, Rev. 3
(if any)
Figure 68. JTAG/COP Interface Connection for one MPC8640 device
14
SRESET0
SRESET1
13
15
10
12
16
11
HRESET
4
6
5
8
9
1
3
7
2
3
COP_CHKSTP_IN
COP_CHKSTP_OUT
COP_VDD_SENSE
COP_TMS
COP_TDO
COP_TDI
COP_TCK
COP_SRESET
COP_TRST
COP_HRESET
NC
NC
NC
4
2
5
10 kΩ
10 Ω
10 kΩ
10 kΩ
10 kΩ
10 kΩ
10 kΩ
10 kΩ
10 kΩ
10 kΩ
10 kΩ
OV
DD
SRESET1
SRESET0
HRESET
TRST
CKSTP_OUT
CKSTP_IN
TMS
TDO
TDI
TCK
Freescale Semiconductor
1
1