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ST7LITEUS2 Datasheet(PDF) 58 Page - STMicroelectronics

Part # ST7LITEUS2
Description  Interrupt management
PDF  136 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST7LITEUS2 Datasheet(HTML) 58 Page - STMicroelectronics

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ST7LITEUS2, ST7LITEUS5
58/136
In AWU mode, the period that the MCU stays in Halt Mode (tAWU in Figure 26) 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.
Table 15.
Configuring the dividing factor
AWUPR[7:0]
Dividing factor
00h
Forbidden
01h
1
...
...
FEh
254
FFh
255
t
AWU
64
AWUPR
×
1
f
AWURC
--------------------------t
RCSTRT
+
×
=
Table 16.
AWU register map and reset values
Address
(Hex.)
Register
label
765432
10
0049h
AWUPR
Reset
value
AWUP
R7
1
AWUP
R6
1
AWUP
R5
1
AWUP
R4
1
AWUP
R3
1
AWUP
R2
1
AWUP
R1
1
AWUP
R0
1
004Ah
AWUCSR
Reset
value
00000
AWUF
AWUM
AWUE
N
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