MPC8548E Freescale, MPC8548E Datasheet - Page 134

• Manufacturer Part Number: MPC8548E
• Description: Integrated Processor
• Manufacturer: Freescale

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System Design Information
134
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 closed to position A during BSDL
6. Asserting SRESET causes a machine check interrupt to the e500 core.
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.
testing to avoid accidentally asserting the TRST line. If BSDL testing is not being performed, this switch should be
closed to position B.
Physical Pinout
in order to fully control the processor as shown here.
11
13
15
1
1
3
5
7
9
Board Sources
No pin
KEY
From Target
10
12
16
4
6
8
2
MPC8548E PowerQUICC™ III Integrated Processor Hardware Specifications, Rev. 4
(if any)
14
13
11
15
10
12
16
SRESET
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
Figure 62. JTAG Interface Connection
COP_SRESET
COP_TRST
COP_HRESET
NC
NC
NC
4
B
2
5
A
10 kΩ
10 Ω
10 kΩ
10 kΩ
10 kΩ
10 kΩ
10 kΩ
10 kΩ
10 kΩ
OV
DD
SRESET
HRESET
TRST
CKSTP_OUT
CKSTP_IN
TMS
TDO
TDI
TCK
Freescale Semiconductor
1
1
6