S3C9228/P9228 PRODUCT OVERVIEW
1-7
Table 1-1. Pin Descriptions (Continued)
Pin Names Pin
Type Pin Description Circuit
Number Pin
Numbers Share
Pins
VDD, VSS –Power input pins for internal power block –5,6(11,12) –
XOUT, XIN –Main oscillator pins for main clock –7,8(13,14)
XTOUT, XTIN –Sub oscillator pins for sub clock –11,10(17,16) –
TEST –Chip test input pin
Hold GND when the device is operating –9(15) –
RESET IRESET signal input pin. Schmitt trigger
input with internal pull-up resistor. B12(18) –
INT I/O External interrupts input. E-4
F-16A 39-42(3-6)
1-4(7-10) P0.0-P0.3
P1.0-P1.3
INTP I/O Key scan interrupts inputs. H-32B 17-18(23-24) P3.1-P3.0
T1CLK I/O Timer 1/A external clock input. E-4 40(4) P0.1
TAOUT I/O Timer 1/A clock output. E-4 39(3) P0.0
AD0-AD3 I/O Analog input pins for A/D converts
module. F-16A 1-4(7-10) P1.0-P1.3
BUZ I/O Buzzer signal output. E-4 42(6) P0.3
SCK
SO I/O Serial clock, serial data output, serial data
input H-32A 16-15(22-21) P2.0-P2.1
SI E-4 14(20) P2.2
SEG0-SEG1 I/O LCD segment signal output H-32A 15-16(21-22) P2.1-P2.0
SEG2-SEG3 H-32B 17-18(23-24) P3.1-P3.0
SEG4-SEG19 H-32 19-34(25-40) P4.0-P4.7
P5.0-P5.7
COM0-COM7 I/O LCD common signal output H-32 38-31
(2-1,42-37) P6.3-P6.0
P5.7-P5.4
NOTE: Parentheses indicate pin number for 42-SDIP-600 package.