PRODUCT OVERVIEW S3C9228/P9228
1-6
PIN DESCRIPTIONS
Table 1-1. Pin Descriptions
Pin Names Pin
Type Pin Description Circuit
Number Pin
Numbers Share
Pins
P0.0
P0.1
P0.2
P0.3
I/O 1-bit programmable I/O port. Schmitt
trigger input or push-pull, open-drain
output and software assignable pull-ups.
E-4 39(3)
40(4)
41(5)
42(6)
TAOUT/INT
T1CLK/INT
INT
BUZ/INT
P0.4-P0.5 O1-bit programmable output port. C43-44
P1.0
P1.1
P1.2
P1.3
I/O 1-bit programmable I/O port. Schmitt
trigger input or push-pull, open-drain
output and software assignable pull-ups.
F-16A 1(7)
2(8)
3(9)
4(10)
AD0/INT
AD1/INT
AD2/INT
AD3/INT
P2.0
P2.1 I/O 1-bit programmable I/O port. Schmitt
trigger input or push-pull, open-drain H-32A 16(22)
15(21) SCK/SEG1
SO/SEG0
P2.2
P2.3 I/O output and software assignable pull-ups. E-4 14(20)
13(19) SI
–
P3.0
P3.1 I/O 1-bit programmable I/O port. Schmitt
trigger input or push-pull, open-drain
output and software assignable pull-ups.
H-32B 18(24)
17(23) INTP/SEG3
INTP/SEG2
P4.0–P4.7 I/O 1-bit programmable I/O port. Input or
push-pull, open-drain output and
software assignable pull-ups.
H-32 19-26(25-32) SEG4-SEG11
P5.0–P5.3 I/O 1-bit programmable I/O port. Input or
push-pull, open-drain output and H-32 27-30(33-36) SEG12-SEG15
P5.4–P5.7 software assignable pull-ups. 31-34(37-40) SEG16-SEG19
/COM7-COM4
P6.0-P6.3 I/O 1-bit programmable I/O port. Input or
push-pull, open-drain output and
software assignable pull-ups.
H-32 35-38
(41-42,1-2) COM3-COM0
NOTE: Parentheses indicate pin number for 42-SDIP-600 package.