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RM0008
8.3.3
General-purpose and alternate-function I/Os (GPIOs and AFIOs)
CAN1 alternate function remapping
The CAN signals can be mapped on Port A, Port B or Port D as shown in Table 30 . For port
D, remapping is not possible in devices delivered in 36-, 48- and 64-pin packages.
Table 30.
CAN1 alternate function remapping
Alternate function (1)
CAN1_RX or CAN_RX
CAN1_TX or CAN_RX
CAN_REMAP[1:0] =
“00”
PA11
PA12
CAN_REMAP[1:0] =
“10” (2)
PB8
PB9
CAN_REMAP[1:0] =
“11” (3)
PD0
PD1
1. CAN1_RX and CAN1_TX in connectivity line devices; CAN_RX and CAN_TX in other devices with a single
CAN interface.
2. Remap not available on 36-pin package
3. This remapping is available only on 100-pin and 144-pin packages, when PD0 and PD1 are not remapped
on OSC-IN and OSC-OUT.
8.3.4
CAN2 alternate function remapping
CAN2 is available in connectivity line devices. The external signal can be remapped as
shown in Chapter Table 31.
Table 31.
CAN2 alternate function remapping
Alternate function
CAN2_RX
CAN2_TX
CAN2_REMAP = “0”
PB12
PB13
CAN2_REMAP = “1”
PB5
PB6
8.3.5
JTAG/SWD alternate function remapping
The debug interface signals are mapped on the GPIO ports as shown in Table 32 .
Table 32.
Debug interface signals
Alternate function
JTMS / SWDIO
JTCK / SWCLK
JTDI
JTDO / TRACESWO
JNTRST
TRACECK
TRACED0
TRACED1
TRACED2
TRACED3
Doc ID 13902 Rev 9
GPIO port
PA13
PA14
PA15
PB3
PB4
PE2
PE3
PE4
PE5
PE6
153/995
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