參數(shù)資料
型號： ST7FLIT19B
廠商： 意法半導(dǎo)體
英文描述： 8-Bit MCU With Single Voltage Flash Memory, Data EEPROM, ADC, 5 Timers, SPI(內(nèi)部RC,PLL,ADC,ROP,ICP, IAP,SPI的8位MCU)
中文描述： 8位微控制器單電壓閃存存儲器，數(shù)據(jù)EEPROM，模數(shù)轉(zhuǎn)換器，5計時器和SPI（內(nèi)部鋼筋，鎖相環(huán)，藝發(fā)局，人事，電感，國際檢察官聯(lián)合會的SPI的8位微控制器）
文件頁數(shù)： 46/155頁
文件大?。?/td> 2968K
代理商： ST7FLIT19B
ST7LITE1xB
46/155
1
POWER SAVING MODES
(Cont’d)
9.6.0.1 Register Description
AWUFH CONTROL/STATUS REGISTER
(AWUCSR)
Read/Write
Reset Value: 0000 0000 (00h)
Bits 7:3 = Reserved.
Bit 1=
AWUF
Auto Wake Up Flag
This bit is set by hardware when the AWU module
generates an interrupt and cleared by software on
reading AWUCSR. Writing to this bit does not
change its value.
0: No AWU interrupt occurred
1: AWU interrupt occurred
Bit 1=
AWUM
Auto Wake Up Measurement
This bit enables the AWU RC oscillator and con-
nects its output to the input capture of the 12-bit
Auto-Reload timer. This allows the timer to be
used to measure the AWU RC oscillator disper-
sion and then compensate this dispersion by pro-
viding the right value in the AWUPRE register.
0: Measurement disabled
1: Measurement enabled
Bit 0 =
AWUEN
Auto Wake Up From Halt Enabled
This bit enables the Auto Wake Up From Halt fea-
ture: once HALT mode is entered, the AWUFH
wakes up the microcontroller after a time delay de-
pendent on the AWU prescaler value. It is set and
cleared by software.
0: AWUFH (Auto Wake Up From Halt) mode disa-
bled
1: AWUFH (Auto Wake Up From Halt) mode ena-
bled
AWUFH PRESCALER REGISTER (AWUPR)
Read/Write
Bits 7:0=
AWUPR[7:0]
Auto Wake Up Prescaler
These 8 bits define the AWUPR Dividing factor (as
explained below:
In AWU mode, the period that the MCU stays in
Halt Mode (t
AWU
in
Figure 30 on page 44
) is de-
fined 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.
Table 7. AWU Register Map and Reset Values
7
0
0
0
0
0
0
AWU
F
AWU
M
AWU
EN
7
0
AWU
PR7
AWU
PR6
AWU
PR5
AWU
PR4
AWU
PR3
AWU
PR2
AWU
PR1
AWU
PR0
AWUPR[7:0
]
00h
01h
...
FEh
FFh
Dividing factor
Forbidden
1
...
254
255
t
AWU
64
AWUPR
×
fAWURC
tRCSTRT
+
×
=
Address
(Hex.)
Register
Label
7
6
5
4
3
2
1
0
0049h
AWUPR
Reset Value
AWUCSR
Reset Value
AWUPR7
1
AWUPR6
1
AWUPR5
1
AWUPR4
1
AWUPR3
1
AWUPR2
1
AWUPR1
1
AWUPR0
1
004Ah
0
0
0
0
0
AWUF
AWUM
AWUEN
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