Samsung S3F80JB manual Pin Descriptions of 32-SOP Circuit 32 Pin Shared Names

S3F80JBPRODUCT OVERVIEW

Table 1-1. Pin Descriptions of 32-SOP

Pin	Pin	Pin Description	Circuit	32 Pin	Shared
Names	Type		Type	No.	Functions
P0.0–P0.7	I/O	I/O port with bit-programmable pins. Configurable	1	17–24	Ext. INT
		to input or push-pull output mode. Pull-up resistors			(INT0–INT3)
		are assignable by software. Pins can be assigned			(INT4)
		individually as external interrupt inputs with noise
		filters, interrupt enable/ disable, and interrupt
		pending control. SED&R (note) circuit built in P0
		for STOP releasing.
P1.0–P1.7	I/O	I/O port with bit-programmable pins. Configurable	2	9–16	–
		to input mode or output mode. Pin circuits are
		either push-pull or n-channel open-drain type.
P2.0–P2.3	I/O	I/O port with bit-programmable pins. Configurable	1	25–28	Ext. INT
P2.4–P2.7		to input or push-pull output mode. Pull-up resistors		29,5,6,8	(INT5–INT8)
		can be assigned by software. Pins can be			(INT9)
		assigned individually as external interrupt inputs			(CIN0-CIN3)
		with noise filters, interrupt enable/disable, and
		interrupt pending control. SED & R (note) circuit
		built in P2-P2.7 for STOP releasing. Also P2.4-
		P2.7 can be assigned individually as analog input
		pins for Comparator.
P3.0	I/O	I/O port with bit-programmable pin. Configurable to	3	30	T0PWM/T0CAP
		input mode, push-pull output mode, or n-channel			(SDAT)
		open-drain output mode. Input mode with a pull-up
		resistor can be assigned by software.
		This port 3 pin has high current drive capability.
		Also P3.0 can be assigned individually as an
		output pin for T0PWM or input pin for T0CAP.
		In the tool mode, P3.0 is assigned as serial MTP
		interface pin; SDAT
P3.1	I/O	I/O port with bit-programmable pin. Configurable to	4	31	REM
		input mode, push-pull output mode, or n-channel			(SCLK)
		open-drain output mode. Input mode with a pull-up
		resistor can be assigned by software.
		This port 3 pin has high current drive capability.
		Also P3.1 can be assigned individually as an
		output pin for REM.
		In the tool mode, P3.1 is assigned as serial MTP
		interface pin; SCLK
XOUT, XIN	–	System clock input and output pins	–	2,3	–
nRESET	I	System reset signal input pin and back-up mode	6	7	–
		input.
TEST	I	Test signal input pin	–	4	–
		(for factory use only; must be connected to VSS).
VDD	–	Power supply input pin	–	32	–
VSS	–	Ground pin	–	1	–

1-7