S912XHZ512F1VAG Datasheet, PDF(281/978 Page) Freescale Semiconductor, Inc – Covers MC9S12XHZ384, MC9S12XHZ256

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S912XHZ512F1VAG Datasheet, PDF (281/978 Pages) Freescale Semiconductor, Inc – Covers MC9S12XHZ384, MC9S12XHZ256

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CSEM

Clear Semaphore

Chapter 5 XGATE (S12XGATEV2)

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

MC9S12XHZ512 Data Sheet, Rev. 1.06

Freescale Semiconductor

281

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