S912XEP768J5MAGR Freescale Semiconductor, S912XEP768J5MAGR Datasheet - Page 369

• Manufacturer Part Number: S912XEP768J5MAGR
• Description: 16-bit Microcontrollers - MCU 16-bit 768K Flash
• Manufacturer: Freescale Semiconductor

Specifications of S912XEP768J5MAGR

• Rohs: yes
• Core: HCS12X
• Processor Series: MC9S12
• Data Bus Width: 16 bit
• Maximum Clock Frequency: 50 MHz
• Program Memory Size: 768 KB
• Data Ram Size: 48 KB
• On-chip Adc: Yes
• Operating Supply Voltage: 3.3 V to 5 V
• Operating Temperature Range: - 40 C to + 125 C
• Package / Case: LQFP-144
• Mounting Style: SMD/SMT

10.3.1.11 XGATE Condition Code Register (XGCCR)
The XGCCR register
Module Base +0x001D
Read: In debug mode if unsecured and not idle (XGCHID ≠ 0x00)
Write: In debug mode if unsecured and not idle (XGCHID ≠ 0x00)
Freescale Semiconductor
XGSEMM[7:0]
XGSEM[7:0]
Reset
Field
15–8
Field
XGN
XGV
XGC
XGZ
7–0
3
2
1
0
W
R
0
0
Semaphore Mask — These bits control the write access to the XGSEM bits.
Read:
These bits will always read "0".
Write:
0 Disable write access to the XGSEM in the same bus cycle
1 Enable write access to the XGSEM in the same bus cycle
Semaphore Bits — These bits indicate whether a semaphore is locked by the S12X_CPU. A semaphore can
be attempted to be set by writing a "1" to the XGSEM bit and to the corresponding XGSEMM bit in the same
write access. Only unlocked semaphores can be set. A semaphore can be cleared by writing a "0" to the
XGSEM bit and a "1" to the corresponding XGSEMM bit in the same write access.
Read:
0 Semaphore is unlocked or locked by the RISC core
1 Semaphore is locked by the S12X_CPU
Write:
0 Clear semaphore if it was locked by the S12X_CPU
1 Attempt to lock semaphore by the S12X_CPU
7
Sign Flag — The RISC core’s Sign flag
Zero Flag — The RISC core’s Zero flag
Overflow Flag — The RISC core’s Overflow flag
Carry Flag — The RISC core’s Carry flag
= Unimplemented or Reserved
(Figure
Figure 10-13. XGATE Condition Code Register (XGCCR)
0
0
6
10-13) provides access to the RISC core’s condition code register.
MC9S12XE-Family Reference Manual Rev. 1.25
Table 10-12. XGSEM Field Descriptions
Table 10-13. XGCCR Field Descriptions
0
0
5
0
0
4
Description
Description
XGN
0
3
XGZ
0
2
Chapter 10 XGATE (S12XGATEV3)
XGV
0
1
XGC
0
0
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