參數(shù)資料
型號: MC68HC08LT8CFGE
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 MM, 1.40 MM THICKNESS, 0.80 MM PITCH, ROHS COMPLIANT, MS-026BCB, LQFP-44
文件頁數(shù): 100/156頁
文件大小: 1107K
代理商: MC68HC08LT8CFGE
System Integration Module (SIM)
MC68HC08LT8 Data Sheet, Rev. 1
48
Freescale Semiconductor
The SIM counter is held in reset from the execution of the STOP instruction until the beginning of stop
recovery. It is then used to time the recovery period. Figure 4-18 shows stop mode entry timing.
NOTE
To minimize stop current, all pins configured as inputs should be driven to
a logic 1 or logic 0.
Figure 4-18. Stop Mode Entry Timing
Figure 4-19. Stop Mode Recovery from Interrupt or Break
4.7 SIM Registers
The SIM has three memory-mapped registers:
SIM Break Status Register (SBSR)
SIM Reset Status Register (SRSR)
SIM Break Flag Control Register (SBFCR)
4.7.1 SIM Break Status Register
The SIM break status register (SBSR) contains a flag to indicate that a break caused an exit from stop
mode or wait mode.
STOP ADDR + 1
SAME
IAB
IDB
PREVIOUS DATA
NEXT OPCODE
SAME
STOP ADDR
SAME
R/W
CPUSTOP
NOTE: Previous data can be operand data or the STOP opcode, depending on the last
instruction.
CGMXCLK
INT/BREAK
IAB
STOP + 2
SP
SP – 1
SP – 2
SP – 3
STOP +1
STOP RECOVERY PERIOD
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