22
EPSON
E0C88832/88862 TECHNICAL MANUAL
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (I/O Memory Map)
Table 5.1.1(e) I/O Memory map (00FF40H–00FF44H)
Address Bit
Name
00FF40 D7
D6
D5
D4
D3
D2
D1
D0
–
FOUT2
FOUT1
FOUT0
FOUTON
WDRST
TMRST
TMRUN
SR R/W
Function
Comment
–
FOUT frequency selection
FOUT output control
Watchdog timer reset
Clock timer reset
Clock timer Run/Stop control
"0" when being read
This is just R/W
register on
E0C88862.
Constantly "0" when
being read
1
0
–
0
0
0
0
–
–
0
R/W
R/W
R/W
R/W
W
W
R/W
–
On
Reset
Reset
Run
–
Off
No operation
No operation
Stop
00FF41 D7
D6
D5
D4
D3
D2
D1
D0
TMD7
TMD6
TMD5
TMD4
TMD3
TMD2
TMD1
TMD0
Clock timer data
Clock timer data
Clock timer data
Clock timer data
Clock timer data
Clock timer data
Clock timer data
Clock timer data
0
0
0
0
0
0
0
0
R
R
R
R
R
R
R
R
High
Low
1 Hz
2 Hz
4 Hz
8 Hz
16 Hz
32 Hz
64 Hz
128 Hz
FOUT2
0
0
0
0
1
1
1
1
FOUT1
0
0
1
1
0
0
1
1
FOUT0
0
1
0
1
0
1
0
1
Frequency
f
OSC1
/ 1
f
OSC1
/ 2
f
OSC1
/ 4
f
OSC1
/ 8
f
OSC3
/ 1
f
OSC3
/ 2
f
OSC3
/ 4
f
OSC3
/ 8
00FF42 D7
D6
D5
D4
D3
D2
D1
D0
–
–
–
–
–
–
SWRST
SWRUN
–
–
–
–
–
–
Stopwatch timer reset
Stopwatch timer Run/Stop control
Constantly "0" when
being read
–
–
–
–
–
–
–
0
W
R/W
–
–
–
–
–
–
Reset
Run
–
–
–
–
–
–
No operation
Stop
00FF43 D7
D6
D5
D4
D3
D2
D1
D0
SWD7
SWD6
SWD5
SWD4
SWD3
SWD2
SWD1
SWD0
Stopwatch timer data
BCD (1/10 sec)
Stopwatch timer data
BCD (1/100 sec)
0
0
0
0
0
0
0
0
R
R
R
R
R
R
R
R
00FF44 D7
D6
D5
D4
D3
D2
D1
D0
–
BZSTP
BZSHT
SHTPW
ENRTM
ENRST
ENON
BZON
–
One-shot buzzer forcibly stop
One-shot buzzer trigger/status
One-shot buzzer duration width selection
Envelope attenuation time
Envelope reset
Envelope On/Off control
Buzzer output control
Constantry "0" when
being read
"0" when being read
*1
–
–
0
0
0
–
0
0
W
R/W
R/W
R/W
W
R/W
R/W
–
Forcibly stop
Busy
Trigger
125 msec
1 sec
Reset
On
On
–
No operation
Ready
No operation
31.25 msec
0.5 sec
No operation
Off
Off
R
W
*1 Reset to "0" during one-shot output.
Summary of Contents for 0C88832
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