
I-14
EPSON
S1C60N08 TECHNICAL HARDWARE
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Memory Map)
Table 4.1.1(b) I/O memory map (2EDH–2FAH)
Address
Comment
D3
D2
Register
D1
D0
Name
Init 1
10
2EFH
WDRST
WD2
WD1
WD0
WR
WDRST3
WD2
WD1
WD0
Reset
0
Reset
–
Watchdog timer reset
Timer data (watchdog timer) 1/4 Hz
Timer data (watchdog timer) 1/2 Hz
Timer data (watchdog timer) 1 Hz
2EEH
TMRST SWRUN SWRST
IOC0
W
R/W
W
R/W
TMRST3
SWRUN
SWRST3
IOC0
Reset
0
Reset
0
Reset
Run
Reset
Output
–
Stop
–
Input
Clock timer reset
Stopwatch timer Run/Stop
Stopwatch timer reset
I/O control register 0 (P00–P03)
2EDH
P03
P02
P01
P00
R/W
P03
P02
P01
P00
– 2
High
Low
I/O port data (P00–P03)
Output latch is reset at initial reset
2F0H
SD3
SD2
SD1
SD0
R/W
SD3
SD2
SD1
SD0
5 Undefined
× 5
Serial I/F data register (low-order 4 bits)
2F1H
SD7
SD6
SD5
SD4
R/W
SD7
SD6
SD5
SD4
× 5
Serial I/F data register (high-order 4 bits)
2F2H
SCS1
SCS0
SE2
EISIO
R/W
SCS1
SCS0
SE2
EISIO
1
0
Enable
Mask
Serial I/F clock
mode selection
Serial I/F clock edge selection
Interrupt mask register (serial I/F)
1
2
Initial value at initial reset
Not set in the circuit
3
4
Always "0" being read
Reset (0) immediately after being read
0
CLK
1
CLK/2
2
CLK/4
3
Slave
[SCS1, 0]
Clock
2F3H
0
IK2
ISIO
R
0 3
IK2 4
ISIO 4
– 2
0
–
Yes
–
No
Unused
Interrupt factor flag (K20–K23)
Interrupt factor flag (serial I/F)
2F4H
K23
K22
K21
K20
R
K23
K22
K21
K20
– 2
High
Low
Input port data (K20–K23)
2F8H
EV03
EV02
EV01
EV00
R
EV03
EV02
EV01
EV00
0
Event counter 0 (low-order 4 bits)
2F9H
EV07
EV06
EV05
EV04
R
EV07
EV06
EV05
EV04
0
Event counter 0 (high-order 4 bits)
2FAH
EV13
EV12
EV11
EV10
R
EV13
EV12
EV11
EV10
0
Event counter 1 (low-order 4 bits)
2F5H
EIK23
EIK22
EIK21
EIK20
R/W
EIK23
EIK22
EIK21
EIK20
0
Enable
Mask
Interrupt mask register (K20–K23)
2F6H
BZFQ2
BZFQ1
BZFQ0 ENVRST
R/W
W
BZFQ2
BZFQ1
BZFQ0
ENVRST3
0
Reset
–
Buzzer
frequency
selection
Envelope reset
2F7H
ENVON ENVRT AMPDT AMPON
RR/W
R/W
ENVON
ENVRT
AMPDT
AMPON
0
1
0
On
1.0 sec
+ > -
On
Off
0.5 sec
+ < -
Off
Envelope On/Off
Envelope cycle selection register
Analog comparator data
Analog comparator On/Off
0
fOSC1/8
1
fOSC1/10
2
fOSC1/12
3
fOSC1/14
[BZFQ2–0]
Frequency
4
fOSC1/16
5
fOSC1/20
6
fOSC1/24
7
fOSC1/28
[BZFQ2–0]
Frequency