DocID13902 Rev 15 176/1128
RM0008 General-purpose and alternate-function I/Os (GPIOs and AFIOs)
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9.3.3 CAN1 alternate function remapping
The CAN signals can be mapped on Port A, Port B or Port D as shown in Tabl e 3 4. For port
D, remapping is not possible in devices delivered in 36-, 48- and 64-pin packages.
9.3.4 CAN2 alternate function remapping
CAN2 is available in connectivity line devices. The external signal can be remapped as
shown in Chapter Table 35.
9.3.5 JTAG/SWD alternate function remapping
The debug interface signals are mapped on the GPIO ports as shown in Table 36.
Table 34. CAN1 alternate function remapping
Alternate function
(1)
1. CAN1_RX and CAN1_TX in connectivity line devices; CAN_RX and CAN_TX in other devices with a single
CAN interface.
CAN_REMAP[1:0] =
“00”
CAN_REMAP[1:0] =
“10”
(2)
2. Remap not available on 36-pin package
CAN_REMAP[1:0] =
“11”
(3)
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.
CAN1_RX or CAN_RX PA11 PB8 PD0
CAN1_TX or CAN_RX PA12 PB9 PD1
Table 35. CAN2 alternate function remapping
Alternate function CAN2_REMAP = “0” CAN2_REMAP = “1”
CAN2_RX PB12 PB5
CAN2_TX PB13 PB6
Table 36. Debug interface signals
Alternate function GPIO port
JTMS / SWDIO PA13
JTCK / SWCLK PA14
JTDI PA15
JTDO / TRACESWO PB3
NJTRST PB4
TRACECK PE2
TRACED0 PE3
TRACED1 PE4
TRACED2 PE5
TRACED3 PE6
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