Table 17. Afio, Gpio And I/O Pad Control Signal True Table; Figure 20. Afio / Gpio Control Signal - Holtek HT32F50231 User Manual

32-Bit Arm ® Cortex ® -M0+ MCU
HT32F50231/HT32F50241
PxCFGn
Input
DMUX
Output
MUX
IP
AFIO
OEN
Control
IP
AFIO
PxDOUTn
PxRSTn
PxSETn
GPIO

Figure 20. AFIO / GPIO Control Signal

PxDINn / PxDOUTn (x = A ~ C): Data Input / Data Output
PxRSTn / PxSETn (x = A ~ C): Reset / Set
PxINENn (x = A ~ C): Input Enable
PxODn (x = A ~ C): Open Drain
PxCFGn (x = A ~ C): AFIO Configuration

Table 17. AFIO, GPIO and I/O 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. 1.00
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
107 of 486
PUN
PDN
OEN DS
PxDVn
PxODn
PxPDn
PxPUn
PxDIRn (x = A ~ C): Direction
PxDVn (x = A ~ C): Output Drive
PxPDn / PxPUn (x = A ~ C): Pull Down / Up
GPIO
PxDIRn PxINENn ADEN OEN IEN
0 1
1 0 (1 if need)
0 X
X 0 (1 if need)
0 0 (1 if need)
0 0 (1 if need)
PAD
1 1 0
1 0 1 (0)
1 1 0
1 0 1 (0)
0 1 1 (0)
0 1 1 (0)
July 31, 2018