Specifications

II-14 EPSON S1C6S2N7 TECHNICAL SOFTWARE
CHAPTER 3: PERIPHERAL CIRCUITS (Input Ports)
PERIPHERAL CIRCUITS
Details on how to control the S1C6S2N7 peripheral circuit is
given in this chapter.
Input Ports
CHAPTER 3
3.1
Input port memory
map
Table 3.1.1 I/O memory map
*1 Initial value following initial reset
*2 Not set in the circuit
*3 Undefined
*4 Reset (0) immediately after being read
*5 Always 0 when being read
*6 Refer to main manual
Address Comment
Register
D3 D2 D1 D0 Name SR
*1
10
0E0H
K03 K02 K01 K00
R
K03
K02
K01
K00
–
–
–
–
Input port (K00–K03)
High
High
High
High
Low
Low
Low
Low
*2
*2
*2
*2
0E8H
EIK03 EIK02 EIK01 EIK00
R/W
EIK03
EIK02
EIK01
EIK00
0
0
0
0
Interrupt mask register (K03)
Interrupt mask register (K02)
Interrupt mask register (K01)
Interrupt mask register (K00)
Enable
Enable
Enable
Enable
Mask
Mask
Mask
Mask
0EDH
0 0 IK0
R
0
0
0
IK0
0
Interrupt factor flag (K00–K03)
Yes No
*5
*5
*5
*4
0