SN8P26L00 Series
8-Bit Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 10
Preliminary Version 0.2
1.4
PIN DESCRIPTIONS
PIN NAME
TYPE
DESCRIPTION
VDD, VSS
P
Power supply input pins for digital circuit.
P0.0/INT0 I/O
P0.0: Port 0.0 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
Built wakeup function.
INT0: External interrupt 0 input pin.
P0.1/INT1 I/O
P0.1: Port 0.1 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
Built wakeup function.
INT1: External interrupt 1 input pin.
P0.2/RST/VPP I,
P
RST is system external reset input pin under Ext_RST mode.
P0.2 is input only pin without pull-up resistor under P0.2 mode.
Schmitt trigger structure, active “low”, normal stay to “high”.
Built wakeup function.
OTP 12.3V power input pin in programming mode.
P0.3/XIN I/O
XIN: Oscillator input pin while external oscillator enable (crystal and RC).
P0.3: Port 0.3 bi-direction pin under internal 16M RC.
Schmitt trigger structure and built-in pull-up resisters as input mode.
Built wakeup function.
P0.4/XOUT I/O
XOUT: Oscillator output pin while external crystal enable.
P0.4: Port 0.4 bi-direction pin under internal 16M RC and external RC.
Schmitt trigger structure and built-in pull-up resisters as input mode.
Built wakeup function.
P1.0 I/O
P1.0: Port 1.0 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
Open-Drain function controlled by “P1OC” register.
Built wakeup function.
P1.1 I/O
P1.1: Port 1.1 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
Open-Drain function controlled by “P1OC” register.
Built wakeup function.
P1[7:2] I/O
P1: Port 1 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
Built wakeup function.
P2[1:0] I/O
P2: Port 2 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
P2.2/CM0N I/O
P2.2: Port 2.2 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
CM0N: Analog comparator 0 negative input pin.
P2.3/CM0P I/O
P2.3: Port 2.3 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
CM0P: Analog comparator 0 positive input pin.
P2.4/CM0O I/O
P2.4: Port 2.4 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
CM0O: Analog comparator 0 output pin.
When the CM0N input level is less than the level of CM0P, the CM0O output Vdd. When
the CM0N input level is higher than the level of CM0P, the CM0O output Vss.
P2.5/CM1N I/O
P2.5: Port 2.5 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
CM1N: Analog comparator 1 negative input pin.
P2.6/CM1P I/O
P2.6: Port 2.6 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
CM1P: Analog comparator 1 positive input pin.
P2.7/CM1O I/O
P2.7: Port 2.7 bi-direction pin.
Schmitt trigger structure and built-in pull-up resisters as input mode.
CM1O: Analog comparator 1 output pin.
