MC9S12XDP512CFU
Model | MC9S12XDP512CFU |
Description | 16-BIT, FLASH, 40MHz, MICROCONTROLLER, PQFP80 |
PDF file | Total 1348 pages (File size: 8M) |
Chip Manufacturer | PHILIPS |
Chapter 6 XGATE (S12XGATEV2)
SSEM
Operation
Set Semaphore
SSEM
Attempts to set a semaphore. The state of the semaphore will be stored in the Carry-Flag:
1 = Semaphore is locked by the RISC core
0 = Semaphore is locked by the S12X_CPU
In monadic address mode, bits RS[2:0] select the semaphore to be set.
CCR Effects
N
—
N:
Z:
V:
C:
Z
—
V
—
C
∆
Not affected.
Not affected.
Not affected.
Set if semaphore is locked by the RISC core; cleared otherwise.
Code and CPU Cycles
Source Form
SSEM #IMM3
SSEM RS
Address
Mode
IMM3
MON
0
0
0
0
0
0
0
0
0
0
Machine Code
IMM3
RS
1
1
1
1
1
1
1
1
0
0
0
0
1
1
0
1
Cycles
PA
PA
MC9S12XDP512 Data Sheet, Rev. 2.21
Freescale Semiconductor
277