TLE9879QXA40
GPIO Ports and Peripheral I/O
Px_ALTSEL0 and Px_ALTSEL1. When a port pin is used as an alternate function, its direction must be set
accordingly in the register Px_DIR.
Each pin can also be programmed to activate an internal weak pull-up or pull-down device. Register Px_PUDSEL
selects whether a pull-up or the pull-down device is activated while register Px_PUDEN enables or disables the
pull device.
PUDSEL
Pull-up / Pull-down
Select Register
Pull-up / Pull-down
Control Logic
PUDEN
Pull-up / Pull-down
Enable Register
TCCR
Temperature Compensation
Control Register
Px_POCONy
Port Output
Driver Control Registers
I
N
T
E
R
N
A
L
OD
Open Drain
Control Register
DIR
Direction Register
ALTSEL0
Alternate Select
Register 0
B
U
S
ALTSEL1
Alternate Select
Register 1
Pull Device
AltDataOut 3
AltDataOut 2
AltDataOut 1
11
10
Output
Driver
01
00
Out
In
Data
Data Register
Input
Driver
AltDataIn
Schmitt
Trigger
Pad
Port_Block_Diagram.vsd
Figure 17 General Structure of Bidirectional Port (P0, P1)
Data Sheet
45
Rev. 1.0, 2015-04-30
INFINEON [ Infineon ]
