Epson S1C33210 manual 42

4 PERIPHERAL CIRCUITS

Register name	Address	Bit	Name	Function	Setting	Init.	R/W	Remarks
8-bit timer,	0040269	D7	–	reserved	–	–	–	0 when being read.
serial I/F Ch.0	(B)	D6	PSIO02	Serial interface Ch.0	0 to 7	X	R/W
interrupt		D5	PSIO01	interrupt level		X
priority register		D4	PSIO00			X
		D3	–	reserved	–	–	–	0 when being read.
		D2	P8TM2	8-bit timer 0–3 interrupt level	0 to 7	X	R/W
		D1	P8TM1			X
		D0	P8TM0			X
Serial I/F Ch.1,	004026A	D7	–	reserved	–	–	–	0 when being read.
A/D interrupt	(B)	D6	PAD2	A/D converter interrupt level	0 to 7	X	R/W
priority register		D5	PAD1			X
		D4	PAD0			X
		D3	–	reserved	–	–	–	0 when being read.
		D2	PSIO12	Serial interface Ch.1	0 to 7	X	R/W
		D1	PSIO11	interrupt level		X
		D0	PSIO10			X
Clock timer	004026B	D7–3	–	reserved	–	–	–	Writing 1 not allowed.
interrupt	(B)	D2	PCTM2	Clock timer interrupt level	0 to 7	X	R/W
priority register		D1	PCTM1			X
		D0	PCTM0			X
Port input 4/5	004026C	D7	–	reserved	–	–	–	0 when being read.
interrupt	(B)	D6	PP5L2	Port input 5 interrupt level	0 to 7	X	R/W
priority register		D5	PP5L1			X
		D4	PP5L0			X
		D3	–	reserved	–	–	–	0 when being read.
		D2	PP4L2	Port input 4 interrupt level	0 to 7	X	R/W
		D1	PP4L1			X
		D0	PP4L0			X
Port input 6/7	004026D	D7	–	reserved	–	–	–	0 when being read.
interrupt	(B)	D6	PP7L2	Port input 7 interrupt level	0 to 7	X	R/W
priority register		D5	PP7L1			X
		D4	PP7L0			X
		D3	–	reserved	–	–	–	0 when being read.
		D2	PP6L2	Port input 6 interrupt level	0 to 7	X	R/W
		D1	PP6L1			X
		D0	PP6L0			X

A-28 EPSON S1C33210 PRODUCT PART