SN32F280 Series
32-Bit Cortex-M0 Micro-Controller
SONiX TECHNOLOGY CO., LTD
Page 26
Version 1.1
1.6 PIN DESCRIPTIONS
Pad NAME
TYPE
DESCRIPTION
VDD, VSS
P
Power supply input pins for digital circuit.
VDDIO1
P
I/O and LCD driver power input pins for P0.12~P0.15, P3.0~P3.6,
P1.6~P1.11.
VDDIO1 voltage shall be less and equal to VLCD if VLCD is enabled.
This power input shall not be floating.
VREG33
O
3.3V voltage output from USB 3.3V regulator.
D+/PSCLK
I/O
D+
—
USB differential signal line.
PSCLK
—
PS/2’s clock pin with internal 5K pull-up resistor.
D-/PSDATA
I/O
D-
—
USB differential signal line.
PSDATA
—
PS/2’s data pin with internal 5K pull-up resistor.
P0.0/AD0
I/O
P0.0
—
General purpose digital input/output pin.
AD0
—
Address/Data 0 for EBI.
P0.1/SEG10/AD1
I/O
P0.1
—
General purpose digital input/output pin.
AD1
—
Address/Data 1 for EBI.
O
SEG10
—
Segment output 10 for LCD driver.
P0.2/SEG11/AD2
I/O
P0.2
—
General purpose digital input/output pin.
AD2
—
Address/Data 2 for EBI.
O
SEG11
—
Segment output 11 for LCD driver.
P0.3/AD3
I/O
P0.3
—
General purpose digital input/output pin.
AD3
—
Address/Data 3 for EBI.
P0.4/CM2P2/AD8
I/O
P0.4
—
General purpose digital input/output pin.
AD8
—
Address/Data 8 for EBI.
I
CM2P2
—
Positive input pin 2 of comparator 2.
P0.5/CM2N2/AD9
I/O
P0.5
—
General purpose digital input/output pin.
AD9
—
Address/Data 9 for EBI.
I
CM2N2
—
Negative input pin 2 of comparator 2.
P0.6
I/O
P0.6
—
General purpose digital input/output pin.
P0.7/CM1P2
I/O
P0.7
—
General purpose digital input/output pin.
I
CM1P2
—
Positive input pin 2 of comparator 1.
P0.8/A24
I/O
P0.8
—
General purpose digital input/output pin.
O
A24
—
Address 24 for EBI.
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