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AT32F413
Series Reference Manual
2022.06.27
Page 100
Rev 2.00
RTS/PB14
Others: Unused
Bit 23: 20 Reserved
0x0
resd
Kept at its default value.
Bit 19: 16 USART1_GMUX
0x0
rw
USART1 IO general multiplexing
Select IO multiplexing for USART1.
0000: TX/PA9, RX/PA10
0001: TX/PB6, RX/PB7
Others: Unused
Bit 15:12
Reserved
0x0
resd
Kept at its default value.
Bit 11:8
SDIO1_GMUX
0x0
rw
SDIO1 IO general multiplexing
Select IO multiplexing for SDIO1.
0000: D0/PC8 D1/PC9 D2/PC10 D3/PC11 D4/PB8
D5/PB9 D6/PC6 D7/PC7 CK/PC12 CMD/PD2
0100: D0/PC0 D1/PC1 D2/PC2 D3/PC3 D4/PA4
D5/PA5 D6/PA6 D7/PA7 CK/PC4 CMD/PC5
0101: D0/PA4 D1/PA5 D2/PA6 D3/PA7 CK/PC4
CMD/PC5
0110: D0/PC0 D1/PC1 D2/PC2 D3/PC3 D4/PA4
D5/PA5 D6/PA6 D7/PA7 CK/PA2 CMD/PA3
0111: D0/PA4 D1/PA5 D2/PA6 D3/PA7 CK/PA2
CMD/PA3
Others: Unused
Bit 7: 4
CAN2_GMUX
0x0
rw
CAN2 IO general multiplexing
Select IO multiplexing for CAN2.
0000: RX/PB12, TX/PB13
0001: RX/PB5, TX/PB6
Others: Unused
Bit 3: 0
CAN1_GMUX
0x0
rw
CAN1 IO general multiplexing
Select IO multiplexing for CAN1.
00: RX/PA11, TX/PA12
10: RX/ PB8, TX/ PB9
Others: Unused
7.3.12 IOMUX remap register7 (IOMUX_REMAP7)
Bit
Register
Reset value
Type
Description
Bit 31: 21 Reserved
0x0
resd
Kept at its default value.
Bit 20
PD01_GMUX
0x0
rw
PD0/PD1 mapped onto HEXT_IN / HEXT_OUT
Select GPIO mapping for PD0 and PD1.
This is applied to only 48-pin and 64-pin packages.
0: No PD0 and PD1 mapping
1: PD0 is mapped to HEXT_IN, while PD1 is mapped to
HEXT_OUT.
Bit 19
Reserved
0x0
resd
Kept at its default value.
Bit 18: 16 SWJTAG_GMUX
0x0
rw
SWD JTAG IO general mutiplexing
These bits are used to configure SWJTAG-related IOs
as GPIO.
000: Supports SWD and JTAG. All SWJTAG pins cannot
be used as GPIO.
001: Supports SWD and JTAG. NJTRST is disabled. PB4
can be used as GPIO.
010: Supports SWD. But JTAG is disabled. PA15/PB3/PB4
can be used as GPIO.
100: SWD and JTAG are disabled. All SWJTAG pins
canbe used as GPIO
Others: No effect.