Chapter 3 Peripheral Circuits; Input Port; Input Port Memory Map - Epson E0C6001 Technical Manual

Cmos 4-bit single chip microcomputer
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CHAPTER 3
Input port memory
map
Table 3.1.1 I/O memory map
Address
D3
K03
0E0H
EIK03
0E8H
0
0EDH
*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
PERIPHERAL CIRCUITS
Details on how to control the E0C6001 peripheral circuit is
given in this chapter.
3.1

Input Port

Register
D2
D1
D0
Name
K02
K01
K00
K03
R
K02
K01
K00
EIK02
EIK01
EIK00
EIK03
R/W
EIK02
EIK01
EIK00
0
0
0
IK0
0
R
0
IK0
CHAPTER 3: PERIPHERAL CIRCUITS (Input Port)
SR
*1
1
0
*2
High
Low
*2
High
Low
*2
High
Low
*2
High
Low
Enable
Mask
0
Enable
Mask
0
Enable
Mask
0
Enable
Mask
0
*5
*5
*5
*4
0
Yes
No
Comment
Input port (K00–K03)
Interrupt mask register (K03)
Interrupt mask register (K02)
Interrupt mask register (K01)
Interrupt mask register (K00)
Interrupt factor flag (K00–K03)
II-13

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