User Manual
389
Rev. 1.1
2019-03-18
TLE984xQX
Microcontroller with LIN and Power Switches for Automotive Applications
GPIO Ports and Peripheral I/O
15.3.3
Open Drain Control Register
Port x Open Drain Control Register
Each pin in output mode can be switched to Open Drain Mode. If driven with 1, no driver will be activated and
the pin output state depends on the internal pull-up/pull-down device setting; if driven with 0, the driver’s
pull-down transistor will be activated.
The open drain mode is controlled by the register Px_OD.
Px_OD
Offset
Reset Value
Port x Open Drain Control Register
xx
H
see
Field
Bits
Type
Description
RES
31:8
r
Reserved
Always read as 0
PP7
7
rwh
Port 7 Pin n Open Drain Mode
0
B
Normal Mode
, , output is actively driven for 0 and 1
state (default)
1
B
Open Drain Mode
, , output is actively driven only for
0 state
PP6
6
rwh
Port 6 Pin n Open Drain Mode
0
B
Normal Mode
, , output is actively driven for 0 and 1
state (default)
1
B
Open Drain Mode
, , output is actively driven only for
0 state
PP5
5
rwh
Port 5 Pin n Open Drain Mode
0
B
Normal Mode
, , output is actively driven for 0 and 1
state (default)
1
B
Open Drain Mode
, , output is actively driven only for
0 state
PP4
4
rwh
Port 4 Pin n Open Drain Mode
0
B
Normal Mode
, , output is actively driven for 0 and 1
state (default)
1
B
Open Drain Mode
, , output is actively driven only for
0 state
31
16
r
RES
15
8
r
RES
77
rwh
PP7
66
rwh
PP6
55
rwh
PP5
44
rwh
PP4
33
rwh
PP3
22
rwh
PP2
11
rwh
PP1
00
rwh
PP0