MPC5200B datasheet(68/72 Pages) FREESCALE

68 / 72 page

MPC5200B Data Sheet, Rev. 3

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.

Key

Key 14

HRESET

SRESET

VDD

JTAG_TRST

VDD

JTAG_TMS

VDD

JTAG_TCK

VDD

JTAG_TDI

TEST_SEL_0

JTAG_TDO

6(2)

5(3)

2(4)

TDO

HRESET

SRESET

TRST

TMS

TCK

TDI

CKSTP_OUT

VDD

10Kohm

COP Header

COP Connector

Physical Pinout

halted

qack

MPC5200B

VDD

10Kohm

PORRESET

MPC5200B 数据表(PDF) 68 Page - Freescale Semiconductor, Inc

MPC5200B 数据表(HTML) 68 Page - Freescale Semiconductor, Inc

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