Sharp ER-A530 STH UP-P16DP STH, Hts, UP-P16DP HTS, Drawer, RTS3# Drive Signal, RTS4# Drive Signal

PORT	PIN	Pin	Signal	I/O	Initial	After	Function
	No.	name	name		value	POFF
P91	6	P91/	STH	I	−	In	UP-P16DP STH
		RxD3					SIGNAL
P92	5	P92/	HTS	O	L	Out L	UP-P16DP HTS
		TxD3					SIGNAL
P93	4	P93/	DRAWER1	O	L	Out L	DRAWER 1
		RTS3#					DRIVE SIGNAL
P94	3	P94/	DRAWER2	O	L	Out L	DRAWER 2
		RTS4#					DRIVE SIGNAL
P95	2	P95/	PCLK	O	L	Out L	PRINTER
		CLK4					CLOCK
P96	1	P96/	SO	O	L	Out L	PRINTER DATA
		TxD4					OUT
P97	144	P97/	SI	I	−	In	PRINTER DATA
		RxD4					IN
P100	141	P100/	TM	I	−	In	PRINTER HEAD
		AN0					TEMPERATURE
							MONITOR
P101	139	P101/	VPTEST	I	−	In	PRINTER HEAD
		AN1					VOLTAGE MON-
							ITOR
P102	138	P102/	VREF	I	−	In	REFERENCE
		AN2					VOLTAGE
P103	137	P103/	PHUPS	I	−	In	PRINTER HEAD
		AN3					UP DETECTION
P104	136	P104/	RPES	I	−	In	PRINTER
		AN4					RECEIPT PAPER
							EMPTY DETEC-
							TION
P105	135	P105/	JPRS	I	−	In	PRINTER JOUR-
		AN5					NAL PAPER
							EMPTY DETEC-
							TION
P106	134	P106/	VHCOM	O	L	Out L	PRINTER
		AN6					POWER CON-
							TROL
P107	133	P107/		I	−	In	NOT USED
		AN7
P110	118	P110	STRB1#	O	H	In	PRINTER
							STROBE 1
P111	117	P111	STRB2#	O	H	In	PRINTER
							STROBE 2
P112	116	P112	STRB3#	O	H	In	PRINTER
							STROBE 3
P113	115	P113	STRB4#	O	H	In	PRINTER
							STROBE 4
P114	114	P114	LATCH#	O	H	In	PRINTER
							LATCH
P120	90	P120	BLON	O	L	Out L	LCD BACK
							LIGHT ON
P121	89	P121	LCDON	O	L	Out L	LCD POWER
							ON
P122	88	P122	LRS	O	L	Out L	LCD RS
P123	87	P123	LR/W#	O	L	Out L	LCD R/W#
P124	86	P124	LE	O	L	Out L	LCD ENABLE
P125	68	P125	LWDL	O	L	Out L	LCD WRITE
							DATA LATCH
P126	67	P126	IPLON0	I	−	In	IPL from ROM
P127	66	P127		O	−	Out L	NOT USED
P130	61	P130	ER2#	O	H	In	RS-232 ER2
P131	60	P131	CD2#	I	−	In	RS-232 CD2
P132	58	P132	CS2#	I	−	In	RS-232 CS2
P133	56	P133	DR2#	I	−	In	RS-232 DR2

PORT	PIN	Pin	Signal	I/O	Initial	After	Function
	No.	name	name		value	POFF
P134	51	P134	ER1#	O	H	In	RS-232 ER1
P135	50	P135	CD1#	I	−	In	RS-232 CD1
P136	49	P136	CS1#	I	−	In	RS-232 CS1
P137	48	P137	DR1#	I	−	In	RS-232 DR1
P140	14	P140	KR8#	I	−	In	KEY RETURN
							SIGNAL 8
P141	13	P141	KR9#	I	−	In	KEY RETURN
							SIGNAL 9
P142	12	P142	MODE#	I	−	In	MODE KEY
							RETURN SIG-
							NAL
P143	11	P143	FSR#	I	−	In	FEED SENSE
							SIGNAL
P144	10	P144	WP#	I	−	In	Flash ROM WP#
P145	9	P145	RY/BY#	I	−	In	NOT USED
P146	8	P146	CKDCR	O	H	In	UP-P16DP
							RESET SIGNAL
P150	131	P150	KS0	O	L	Out L	KEY STROBE
							SIGNAL 0
P151	129	P151	KS1	O	L	Out L	KEY STROBE
							SIGNAL 1
P152	128	P152	KS2	O	L	Out L	KEY STROBE
							SIGNAL 2
P153	127	P153	KS3	O	L	Out L	KEY STROBE
							SIGNAL 3
P154	126	P154	LEDS0	O	L	Out L	LED STROBE
							SIGNAL 0
P155	125	P155	LEDS1	O	L	Out L	LED STROBE
							SIGNAL 1
P156	124	P156	LEDS2	O	L	Out L	LED STROBE
							SIGNAL 2
P157	123	P157	LEDS3	O	L	Out L	LED STROBE
							SIGNAL 3

POWER SUPPLY/CONTROL PINS

PORT	PIN No.	I/O	PIN NAME	FUNCTION
Xin	22	I	Xin	SYSTEM CLOCK IN
Xout	20	O	Xout	NC
RESET#	19	I	RESET#	RESET
BYTE	15	I	BYTE	Connected to VDD
CNVss	16		CNVss	Connected to VDD
Vref	142		Vref	Connected to VDD

ER-A520U/ER-A530U HARDWARE DESCRIPTION

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