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S3C84E5/C84E9/P84E9 PRODUCT OVERVIEW
1-7
Table 1-1. S3C84E5/C84E9/P84E9 Pin Descriptions (Continued)
Pin
Name
Pin
Type
Pin
Description
Circuit
Type
Pin
Number
Share
Pins
INT0–INT10 I Input pins for external interrupt.
Alternatively used as general-purpose digital
input/output port 2,4.
D-1 13-20, 4
10-11
(19-26)
(10,16-17)
P2.0–P2.7
P4.0–P4.2
ADC0–ADC7 I Analog input pins for A/D converter module.
Alternatively used as general-purpose digital
input/output port 3.
E 24-31
(29-36)
P3.0–P3.7
AVREF, AVSS – A/D converter reference voltage and ground – 22, 23
(27, 28)
–
RxD I Serial data RxD pin for receive input and
transmit output (mode 0)
D 33
(38)
P1.4
TxD O Serial data TxD pin for transmit output and
shift clock output (mode 0)
D 32
(37)
P1.5
TACK I External clock input pins for timer A D 39(2) P0.6
TACAP I Capture input pins for timer A D 38(1) P0.7
TAOUT O Pulse width modulation output pins for timer A D 37(42) P1.0
BUZ O Buzzer output pin D 34(39) P1.3
TBPWM O Carrier frequency output pins for timer B D 3(9) P4.3
T1CK0 I External clock input pins for timer 1(0) D 36(41) P1.1
T1CAP0 I Capture input pins for timer 1(0) D 40(3) P0.5
T1OUT0 O Timer 1(0) 16-bit PWM mode output or
counter match toggle output pins
D 35(40) P1.2
T1CK1 I External clock input pins for timer 1(1) D 42(3) P0.3
T1CAP1 I Capture input pins for timer 1(1) D 43(5) P0.2
T1OUT1 O Timer 1(1) 16-bit PWM mode output or
counter match toggle output pins
D 41(4) P0.4
nRESET I System reset pin B 12(18) –
TEST I Pull-down resistor connected internally – 9(15) –
VDD, VSS – Power input pins – 5,6
(11,12)
–
XTIN, XTOUT I,O Subsystem oscillator pins – 1,2
(7,8)
P0.0, P0.1
Xin, Xout I,O Main oscillator pins – 7,8
(13,14)
–
NOTE: Pin numbers shown in parentheses "( )" are for the 42-pin SDIP package.