The following
configuration values are valid for all listed bit names of this register:
0: Keep
function (IO_retention) activated in pads.
1: No Keep function (IO_retention)
activated in pads.
Name:
SFRBU_IO_RETENTION
Offset:
0x30
Reset:
0x0001F7FF
Property:
Read/Write
Bit
31
30
29
28
27
26
25
24
Access
Reset
Bit
23
22
21
20
19
18
17
16
NRST
Access
R/W
Reset
1
Bit
15
14
13
12
11
10
9
8
PD_30_24
PD_23_16
PD_15_8
PD_7_0
PC_22_16
PC_15_8
PC_7_0
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
1
1
1
1
1
1
1
Bit
7
6
5
4
3
2
1
0
PB_26_24
PB_23_16
PB_15_8
PB_7_0
PA_31_24
PA_23_16
PA_15_8
PA_7_0
Access
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Reset
1
1
1
1
1
1
1
1
Bit 16 – NRST Keep Function on NRST Pad
Bit 15 – PD_30_24 Keep Function on PD24 to PD30
Bit 14 – PD_23_16 Keep Function on PD16 to PD23
Bit 13 – PD_15_8 Keep Function on PD8 to PD15
Bit 12 – PD_7_0 Keep Function on PD0 to PD7
Bit 10 – PC_22_16 Keep Function on PC16 to PC22
Bit 9 – PC_15_8 Keep Function on PC8 to PC15
Bit 8 – PC_7_0 Keep Function on PC0 to PC7
Bit 7 – PB_26_24 Keep Function on PB24 to PB26
Bit 6 – PB_23_16 Keep Function on PB16 to PB23
Bit 5 – PB_15_8 Keep Function on PB8 to PB15
Bit 4 – PB_7_0 Keep Function on PB0 to PB7
Bit 3 – PA_31_24 Keep Function on PA24 to PA31
Bit 2 – PA_23_16 Keep Function on PA16 to PA23
Bit 1 – PA_15_8 Keep Function on PA8 to PA15
Bit 0 – PA_7_0 Keep Function on PA0 to
PA7
The online versions of the documents are provided as a courtesy. Verify all content and data in the device’s PDF documentation found on the device product page.
