ST STM32L4x6

General-purpose I/Os (GPIO) RM0351
256/1693 DocID024597 Rev 3
Table 32. Port bit configuration table
(1)
1. GP = general-purpose, PP = push-pull, PU = pull-up, PD = pull-down, OD = open-drain, AF = alternate
function.
MODE(i)
[1:0]
OTYPER(i)
OSPEED(i)
[1:0]
PUPD(i)
[1:0]
I/O configuration
01
0
SPEED
[1:0]
0 0 GP output PP
0 0 1 GP output PP + PU
0 1 0 GP output PP + PD
0 1 1 Reserved
1 0 0 GP output OD
1 0 1 GP output OD + PU
1 1 0 GP output OD + PD
1 1 1 Reserved (GP output OD)
10
0
SPEED
[1:0]
0 0 AF PP
0 0 1 AF PP + PU
0 1 0 AF PP + PD
0 1 1 Reserved
100AFOD
101AFOD + PU
110AFOD + PD
1 1 1 Reserved
00
x x x 0 0 Input Floating
x x x 0 1 Input PU
x x x 1 0 Input PD
x x x 1 1 Reserved (input floating)
11
x x x 0 0 Input/output Analog
xxx01
Reservedxxx10
xxx11