Samsung S3F80JB manual Pin Descriptions of 44-QFP Circuit 44 Pin Shared Names

PRODUCT OVERVIEWS3F80JB

Table 1-2. Pin Descriptions of 44-QFP

Pin	Pin	Pin Description	Circuit	44 Pin	Shared
Names	Type		Type	No.	Functions
P0.0–P0.7	I/O	I/O port with bit-programmable pins.	1	30–37	Ext. INT
		Configurable to input or push-pull output			(INT0–INT3)
		mode. Pull-up resistors can be assigned			(INT4)
		by software. Pins can be assigned
		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.	2	16	–
		Configurable to input mode or output		20–26
		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.	1	42–44	Ext. INT
P2.4–P2.7		Configurable to input or push-pull output		1, 2,	(INT5–INT8)
		mode. Pull-up resistors can be assigned		10,11,	(INT9)
		by software. Pins can be assigned		15	(CIN0-CIN3)
		individually as external interrupt inputs
		with noise filters, interrupt enable/
		disable, and interrupt pending control.
		SED & R(note) circuit built in P2.4-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.	3	3	T0PWM/T0CAP
		Configurable to input mode, push-pull			(SDAT)
		output mode, or n-channel open-drain
		output mode. Input mode with a pull-up
		resistor can be assigned by software.
		This port 3pin 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

NOTE: SED & R means “STOP Error Detect & Recovery”. The Stop Error Detect & Recovery Circuit is used to release stop mode and prevent abnormal-stop mode. Refer to page 8-11.

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