Table 20. Afio, Gpio And Io Pad Control Signal True Table; Figure 19. Afio/Gpio Control Signal - Holtek HT32F52220 User Manual

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F52220/HT32F52230
PxCFGn
Input
DMUX
Output
MUX
IP
AFIO
OEN
IP
Control
AFIO
PxDOUTn
PxRSTn
PxSETn
GPIO

Figure 19. AFIO/GPIO Control Signal

PxDINn/PxDOUTn (x=A ~ B): Data Input/Data Output
PxDIRn (x=A ~ B): Direction
PxDVn (x=A ~ B): Output Drive
PxPDn/PxPUn (x=A ~ B): Pull Down/Up

Table 20. AFIO, GPIO and IO Pad Control Signal True Table

Type
GPIO Input (Note)
GPIO Output
(Note)
AFIO Input
AFIO Output
ADC Input
OSC Output
Note: The signals, IEN and OEN, for I/O pads are derived from the GPIO register bits PxINENn and
PxDIRn respectively when the associated pin is configured in the GPIO input/output mode.
Rev. 1.10
IEN
IOPAD
ADC
ADEN
PxDINn
PxINENn
PxDIRn
AFIO
ADEN OEN IEN
AFIO AFIO AFIO
1 1 1
1 1 1
1 1 0
1 0 1
0 1 1
0 1 1
106 of 366
PUN
PDN
OEN DS
PxDVn
PxODn
PxPDn
PxPUn
PxRSTn/PxSETn (x=A ~ B): Reset/Set
PxINENn (x=A ~ B): Input Enable
PxODn (x=A ~ B): Open Drain
PxCFGn (x=A ~ B): AFIO Configuration
GPIO
PxDIRn PxINENn ADEN OEN IEN
0 1 1
1 0 (1 if need) 1
0 X 1
X 0 (1 if need) 1
0 0 (1 if need) 0
0 0 (1 if need) 0
November 09, 2018
PAD
1 0
0 1 (0)
1 0
0 1 (0)
1 1 (0)
1 1 (0)