Epson S1C63558 - Manual (Page 32)

22 EPSON S1C63558 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Memory Map)
Table 4.1.1 (h) I/O memory map (FFF8H–FFFAH)
Address Comment
D3 D2
Register
D1 D0 Name Init
∗
1 1 0
FFF9H
0 0 0 ID
R R/W
0
∗ 3
0
∗ 3
0 ∗ 3
ID
–
∗ 2
–
∗ 2
– ∗ 2
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Unused
Unused
Interrupt factor flag (Dialer)
FFFAH
0 0 IRDET ICDET
R R/W
0 ∗ 3
0
∗ 3
IRDET
ICDET
– ∗ 2
–
∗ 2
0
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Unused
Interrupt factor flag (FSK demodulator ring detection)
Interrupt factor flag (FSK demodulator carrier detection)
FFF8H
0 ISERS ISTRS ISRCS
R R/W
0
∗ 3
ISERS
ISTRS
ISRCS
–
∗ 2
0
0
0
(R)
Yes
(W)
Reset
(R)
No
(W)
Invalid
Unused
Interrupt factor flag (Serial I/F (2) error)
Interrupt factor flag (Serial I/F (2) transmit completion)
Interrupt factor flag (Serial I/F (2) receive completion)