ISD94100 Series Technical Reference Manual
Sep 9, 2019
Page
184
of 928
Rev1.09
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ICA
L
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F
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NCE
M
AN
U
AL
PB Standby Power-down Wake-up Control Register
(CLK_PBSWKCTL)
Register
Offset
R/W Description
Reset Value
CLK_PBSWKCTL
0xA4
R/W GPB Standby Power-down Wakeup Control Register
0x0000_0000
31
30
29
28
27
26
25
24
Reserved
23
22
21
20
19
18
17
16
Reserved
15
14
13
12
11
10
9
8
Reserved
DBEN
7
6
5
4
3
2
1
0
WKPSEL
Reserved
PFWKEN
PRWKEN
WKEN
Bits
Description
[31:9]
Reserved
Reserved. Any values read should be ignored. When writing to this field always write with
reset value.
[8]
DBEN
PB Input Signal De-bounce Enable Bit
The DBEN bit is used to enable the de-bounce function for each corresponding I/O. If the
input signal pulse width cannot be sampled by continuous two de-bounce sample cycle, the
input signal transition is seen as the signal bounce and will not trigger the wakeup. The de-
bounce clock source is the internal low speed RC oscillator.
0 = Standby power-down wake-up pin De-bounce function disable.
1 = Standby power-down wake-up pin De-bounce function enable.
The de-bounce function is valid only for edge triggered.
[7:4]
WKPSEL
PB Standby Power-down Wake-up Pin Select
0000 = PB.0 wake-up function enabled.
0001 = PB.1 wake-up function enabled.
0010 = PB.2 wake-up function enabled.
0011 = PB.3 wake-up function enabled.
0100 = PB.4 wake-up function enabled.
0101 = PB.5 wake-up function enabled.
0110 = PB.6 wake-up function enabled.
0111 = PB.7 wake-up function enabled.
1000 = PB.8 wake-up function enabled.
1001 = PB.9 wake-up function enabled.
1010 = Reserved. Do not use.
1011 = Reserved. Do not use.
1100 = Reserved. Do not use.
1101 = PB.13 wake-up function enabled.
1110 = PB.14 wake-up function enabled.
Содержание ISD94100 Series
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