MC9S12XD256MAL Datasheet, PDF(254/1348 Page) Freescale Semiconductor, Inc – Freescale’s Scalable Controller Area Network

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MC9S12XD256MAL Datasheet, PDF (254/1348 Pages) Freescale Semiconductor, Inc – Freescale’s Scalable Controller Area Network

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Chapter 6 XGATE (S12XGATEV2)

CSEM

Clear Semaphore

CSEM

Operation

Unlocks a semaphore that was locked by the RISC core.

In monadic address mode, bits RS[2:0] select the semaphore to be cleared.

CCR Effects

NZVC

ââââ

N: Not affected.

Z: Not affected.

V: Not affected.

C: Not affected.

Code and CPU Cycles

Source Form

CSEM #IMM3

CSEM RS

Address

Mode

IMM3

MON

00000

00000

Machine Code

Cycles

IMM3 1 1 1 1 0 0 0 0

PA

RS 1 1 1 1 0 0 0 1

PA

MC9S12XDP512 Data Sheet, Rev. 2.21

254

Freescale Semiconductor

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