SPMCK16Z4MPV16 datasheet(177/500 Pages) FREESCALE

tên linh kiện	SPMCK16Z4MPV16

Giải thích chi tiết về linh kiện	M68HC16Z Series

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M68HC16 Z SERIES

SYSTEM INTEGRATION MODULE

USER’S MANUAL

5-71

5.10.3 Data Registers

A write to the port E and port F data registers (PORTE[0:1] and PORTF[0:1]) is stored

in an internal data latch, and if any pin in the corresponding port is configured as an

output, the value stored for that bit is driven out on the pin. A read of a data register

returns the value at the pin only if the pin is configured as a discrete input. Otherwise,

the value read is the value stored in the register. Both data registers can be accessed

in two locations and can be read or written at any time.

5.11 Factory Test

The test submodule supports scan-based testing of the various MCU modules. It is in-

tegrated into the SIM to support production test. Test submodule registers are intend-

ed for Freescale use only. Register names and addresses are provided in APPENDIX

D REGISTER SUMMARY to show the user that these addresses are occupied. The

QUOT pin is also used for factory test.

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