Epson E0C6001 Technical Manual page 87

E0C6001 TECHNICAL SOFTWARE
Table 1.4.1(b) I/O memory map 2
Address
D3
0
0EDH
0
0EFH
0
R
0F3H
P03
0F6H
*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
II-6
Register
D2 D1 D0 Name
0 0 IK0 0
0
R
0
IK0
IT2 IT8 IT32
0
R
IT2
IT8
IT32
R01 R00
0
0
BUZZER FOUT
0
R/W
R01
BUZZER
R00
FOUT
P03
P02 P01 P00
P02
R/W
P01
P00
SR 1 0
*1
*5
*5
*5
*4
Yes No
0
*5
*4
0 Yes No
*4
0 Yes No
*4
0 Yes No
*5
*5
0 High Low
0 ON OFF
0 High Low
0 ON OFF
*2
– High Low
*2
High Low
–
*2
– High Low
*2
– High Low
Comment
Interrupt factor flag (K00–K03)
Interrupt factor flag (clock timer 2 Hz)
Interrupt factor flag (clock timer 8 Hz)
Interrupt factor flag (clock timer 32 Hz)
R01 output port data
Buzzer ON/OFF control register
R00 output port data
Frequency output ON/OFF control register
I/O port (P00–P03)