mc9s12xd256 Freescale Semiconductor, Inc, mc9s12xd256 Datasheet - Page 254

• Manufacturer Part Number: mc9s12xd256
• Description: Hcs12x Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

Chapter 6 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
Code and CPU Cycles
254
N:
Z:
V:
C:
CSEM #IMM3
CSEM RS
—
N
Not affected.
Not affected.
Not affected.
Not affected.
—
Z
—
V
Source Form
—
C
Address
MC9S12XDP512 Data Sheet, Rev. 2.17
Mode
IMM3
MON
Clear Semaphore
0
0
0
0
0
0
0
0
0
0
IMM3
Machine Code
RS
1
1
1
1
1
1
1
1
CSEM
0
0
Freescale Semiconductor
0
0
0
0
0
1
Cycles
PA
PA