SIC63616-(Rev. 1.0) NO. P22
3240-0412
Table 4.1.1 (f) I/O memory map (FF42H-FF51H)
D3
D2
D1
D0
Name Init
∗
1
1
0
Address
Comment
Register
0
4096.0
1
3276.8
2
2730.7
3
2340.6
[BZFQ2–0]
Frequency (Hz)
4
2048.0
5
1638.4
6
1365.3
7
1170.3
[BZFQ2–0]
Frequency (Hz)
0
None
1
P12
2
P12–13
3
P12–13,40
[DKM2–0]
Key mask
4
P40
5
P40–41
6
P40–42
7
P40–43
[DKM2–0]
Key mask
Unused
Key mask
selection
0
Normal
1
Reverse
2
All lit
3
All off
[DSPC1, 0]
Display mode
R
FF42H
FF44H
ENRTM ENRST ENON
BZE
R/W
W
R/W
ENRTM
ENRST
∗
3
ENON
BZE
0
Reset
0
0
1 sec
Reset
On
Enable
0.5 sec
Invalid
Off
Disable
Envelope releasing time selection
Envelope reset (writing)
Envelope On/Off
Buzzer output enable
TM7
TM6
TM5
TM4
TM7
TM6
TM5
TM4
0
0
0
0
Clock timer data (1 Hz)
Clock timer data (2 Hz)
Clock timer data (4 Hz)
Clock timer data (8 Hz)
FF46H
0
BZFQ2 BZFQ1 BZFQ0
R
R/W
0
∗
3
BZFQ2
BZFQ1
BZFQ0
–
∗
2
0
0
0
Unused
Buzzer
frequency
selection
FF47H
0
BDTY2 BDTY1 BDTY0
R
R/W
0
∗
3
BDTY2
BDTY1
BDTY0
–
∗
2
0
0
0
Unused
Buzzer signal duty ratio selection
(refer to main manual)
FF45H
0
BZSTP BZSHT SHTPW
R
W
R/W
0
∗
3
BZSTP
∗
3
BZSHT
SHTPW
–
∗
2
0
0
0
Stop
Trigger
Busy
125 msec
Invalid
Invalid
Ready
31.25 msec
Unused
1-shot buzzer stop (writing)
1-shot buzzer trigger (writing)
1-shot buzzer status (reading)
1-shot buzzer pulse width setting
FF48H
R
R/W
FF49H
0
DKM2
DKM1
DKM0
0
∗
3
DKM2
DKM1
DKM0
–
∗
2
0
0
0
R/W
W
R
FF4AH
LCURF CRNWF SWRUN SWRST
LCURF
CRNWF
SWRUN
SWRST
∗
3
0
0
0
Reset
Request
Renewal
Run
Reset
No
No
Stop
Invalid
Lap data carry-up request flag
Capture renewal flag
Stopwatch timer Run/Stop
Stopwatch timer reset (writing)
SWD7
SWD6
SWD5
SWD4
0
0
0
0
Stopwatch timer data
BCD (1/100 sec)
R
FF4CH
SWD7 SWD6 SWD5 SWD4
SWD11
SWD10
SWD9
SWD8
0
0
0
0
Stopwatch timer data
BCD (1/10 sec)
R
FF4DH
SWD11 SWD10 SWD9 SWD8
R
FF4BH
SWD3 SWD2 SWD1 SWD0
SWD3
SWD2
SWD1
SWD0
0
0
0
0
Stopwatch timer data
BCD (1/1000 sec)
0
0
SWDIR EDIR
R
R/W
0
∗
3
0
∗
3
SWDIR
EDIR
–
∗
2
–
∗
2
0
0
Enable Disable
Unused
Unused
Stopwatch direct input switch
0: P10=Run/Stop, P11=Lap 1: P10=Lap, P11=Run/Stop
Direct input enable
General
LPAGE
DSPC1
DSPC0
0
0
0
0
1
F200-F36F
0
F000-F16F
General-purpose register
Display memory area (when 1/16 duty is selected)
functions as a general-purpose register when 1/24 or 1/32 is selected
LCD display
mode selection
R/W
FF50H
General LPAGE DSPC1 DSPC0
0
1/32 (32 Hz)
[LDUTY2–0]
Duty
1
Prohibited
2
1/24 (42 Hz)
3
1/24 (21 Hz)
[LDUTY2–0]
Duty
4
1/16 (32 Hz)
5–7
Prohibited
FF51H
General LDUTY2 LDUTY1 LDUTY0
R/W
General
LDUTY2
LDUTY1
LDUTY0
0
0
0
0
1
0
General-purpose register
LCD
drive duty
selection