Datasheet

MPC5200B Data Sheet, Rev. 4
68 Freescale Semiconductor
To reset the MPC5200B via the COP connector, the HRESET pin of the COP should be connected to the HRESET pin of the
MPC5200B. The circuitry shown in Figure 54 allows the COP to assert HRESET
or JTAG_TRST separately, while any other
board sources can drive PORRESET
.
Figure 54. COP Connector Diagram
3.4.2.2 Boards Without COP Connector
If the JTAG interface is not used, JTAG_TRST should be tied to PORRESET, so that it is asserted when the system reset signal
(PORRESET
) is asserted. This ensures that the JTAG scan chain is initialized during power on. Figure 55 shows the connection
of the JTAG interface without COP connector.
1
3
5
7
9
11
13
15
2
4
6
8
10
12
K
16
Key
Key 14
HRESET
SRESET
VDD
VDD
JTAG_TRST
VDD
JTAG_TMS
VDD
JTAG_TCK
VDD
JTAG_TDI
TEST_SEL_0
JTAG_TDO
3
11
16
4
9
12
7
6
(2)
15
1
10
8
5
(3)
2
(4)
13
NC
NC
NC
NC
TDO
HRESET
SRESET
TRST
TMS
TCK
TDI
CKSTP_OUT
VDD
10Kohm
10Kohm
10Kohm
10Kohm
10Kohm
COP Header
COP Connector
Physical Pinout
halted
qack
MPC5200B
VDD
10Kohm
PORRESET
PORRESET