参数资料
型号: ST7PLU09MCTRE
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 8 MHz, MICROCONTROLLER, PDSO8
封装: 0.150 INCH, ROHS COMPLIANT, PLASTIC, SOP-8
文件页数: 50/124页
文件大小: 1995K
代理商: ST7PLU09MCTRE
ST7LUS5, ST7LU05, ST7LU09
Supply, reset and clock management
6.2.5
Clock controller control/status register (CKCNTCSR)
CKCNTCSR
Reset value: 0000 1001 (09h)
7654
3
2
1
0
Reserved
AWU_FLAG
RC_FLAG
Reserved
RC/AWU
-
R/W
-
R/W
Table 11.
CKCNTCSR register description
Bit
Name
Function
7:4
-
Reserved, must be kept cleared.
3
AWU_FLAG
AWU Selection
This bit is set and cleared by hardware.
0: No switch from AWU to RC requested
1: AWU clock activated and temporization completed
2
RC_FLAG
RC Selection
This bit is set and cleared by hardware.
0: No switch from RC to AWU requested
1: RC clock activated and temporization completed
1
-
Reserved, must be kept cleared.
0
RC/AWU
RC/AWU Selection
0: RC enabled
1: AWU enabled (default value)
Table 12.
Clock register map and reset values
Address
(Hex.)
Register
label
76
54
3
2
1
0
0038h
MCCSR
Reset value
0
SMS
0
0039h
RCCR
Reset value
CR9
1
CR8
1
CR7
1
CR6
1
CR5
1
CR4
1
CR3
1
CR2
1
003Ah
SICSR
Reset value
0
CR1
0
CR0
00
0
LVDRF
x0
0
003Eh
INTRCPRR
Reset value
CK2
0
CK1
0
CK0
00
0
1
003Fh
CKCNTCSR
Reset value
0
AWU_FLAG
1
RC_FLAG
00
RC/AWU
1
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