Epson S1C63558 Table 4.1.1 (h) I/O memory map (FFF8H–FFFAH)

CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Memory Map)

Table 4.1.1 (h) I/O memory map (FFF8H–FFFAH)

Address			Register							Comment
	D3		D2	D1	D0	Name	Init ∗ 1	1	0
	0		ISERS	ISTRS	ISRCS	0 ∗ 3	– ∗ 2	(R)	(R)	Unused
						ISERS	0	Yes	No	Interrupt factor flag (Serial I/F (2) error)
FFF8H
	R			R/W		ISTRS	0	(W)	(W)	Interrupt factor flag (Serial I/F (2) transmit completion)
						ISRCS	0	Reset	Invalid	Interrupt factor flag (Serial I/F (2) receive completion)
	0		0	0	ID	0 ∗ 3	– ∗ 2	(R)	(R)	Unused
						0 ∗ 3	– ∗ 2	Yes	No	Unused
FFF9H
			R		R/W	0 ∗ 3	– ∗ 2	(W)	(W)	Unused
						ID	0	Reset	Invalid	Interrupt factor flag (Dialer)
	0		0	IRDET	ICDET	0 ∗ 3	– ∗ 2	(R)	(R)	Unused
						0 ∗ 3	– ∗ 2	Yes	No	Unused
FFFAH
		R		R/W		IRDET	0	(W)	(W)	Interrupt factor flag (FSK demodulator ring detection)
						ICDET	0	Reset	Invalid	Interrupt factor flag (FSK demodulator carrier detection)

22 EPSON S1C63558 TECHNICAL MANUAL