Pioneer SE-DIR800C manual PEF001A9 PCB Assy IC4, Pin Name Pin Function

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A

PEF001A9 (PCB ASSY : IC4)

•8-bit 1-chip microcomputer

Pin Arrangement (Top view)

	PB5	1
	PB4
		2
	PA3
		3
	PA2
		4
	PA1
		5
	PA0
		6
	PB3
		7
	PB2
B		8
	PB1/BZ	9
	PB0/BZ
		10
	VSS
		11
	PG0/INT	12
	PC0/TMR0
		13
	PC1
		14

28 PB6

27PB7

26PA4

25PA5

24PA6

23PA7

22OSC2/PG2

21OSC1/PG1

20VDD

19RES

18PC5/TMR1

17PC4

16PC3

15PC2

Pin Function

	No.	Pin Name	I/O	Pin Function
C	1	PB5	O	LED control
	2	PB4	O	LED control
	3	PA3	O	LED control
	4	PA2	O	LED control
	5	PA1	O	LED control
	6	PA0	O	LED control
	7	PB3	O	Chip enable output for DSP
	8	PB2	O	Chip select output for DSP
	9	PB1	O	Serial clock output
	10	PB0	O	Serial data output
D	11	VSS	−	Ground
	12	PG0	I	Serial data input
	13	PC0	I	Key input 1
	14	PC1	I	Key input 2
	15	PC2	I	Key input 3
	16	PC3	I	Key input 4
	17	PC4	I	Battery detection input
	18	PC5	I	Battery voltage abnormality detection
	19	RES	−	External reset input
	20	VDD	−	Power supply
E	21	OSC1	I	CR oscillation input
	22	OSC2	O	Oscillation output
	23	PA7	O	LED control
	24	PA6	O	Charge control
	25	PA5	O	IR LED control
	26	PA4	O	A/D reset output
	27	PB7	O	DSP reset output 1
	28	PB6	O	DSP reset output 2

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SE-DIR800C

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