參數(shù)資料
型號: ST7FLU05MAE
廠商: STMICROELECTRONICS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDSO8
封裝: 0.150 INCH, LEAD FREE, PLASTIC, SOP-8
文件頁數(shù): 77/124頁
文件大小: 2186K
代理商: ST7FLU05MAE
Obsolete
Product(s)
- Obsolete
Product(s)
Power saving modes
ST7LUS5, ST7LU05, ST7LU09
56/124
AWUFH prescaler register (AWUPR)
In AWU mode, the period that the MCU stays in halt mode (tAWU in Figure 32 on page 61) is defined by:
This prescaler register can be programmed to modify the time that the MCU stays in halt mode before
waking up automatically.
Note:
If 00h is written to AWUPR, depending on the product, an interrupt is generated immediately
after a HALT instruction, or the AWUPR remains unchanged.
AWUPR
Reset value: 1111 1111 (FFh)
7654
3210
AWUPR[7:0]
R/W
Table 23.
AWUPR register description
Bit
Name
Function
7:0
AWUPR[7:0]
Auto wake-up prescaler
These 8 bits define the AWUPR division factor (as explained below).
This prescaler register can be programmed to modify the time that the MCU stays in halt
mode before waking up automatically.
Note: If 00h is written to AWUPR, depending on the product, an interrupt is generated
immediately after a HALT instruction, or the AWUPR remains unchanged.
Table 24.
AWUPR division factors
AWUPR[7:0]
Division factor
00h
Forbidden
01h
1
...
FEh
254
FFh
255
t
AWU
64
AWUPR
×
1
f
AWURC
--------------------------t
RCSTRT
+
×
=
Table 25.
AWU register map and reset values
Address (Hex.) Register label
7
6
5
4321
0
004Ah
AWUCSR
Reset value
000
00
AWUF
0
AWUM
0
AWUEN
0
0049h
AWUPR
Reset value
AWUPR7
1
AWUPR6
1
AWUPR5
1
AWUPR4
1
AWUPR3
1
AWUPR2
1
AWUPR1
1
AWUPR0
1
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