Toshiba TLCS-900/H1 Series Data Book page 491

(16) Melody/Alarm Generator
Symbol Name
Alarm –
ALM Pattern
Reg
Melody/
Alarm
MELALMC
Control
Reg
Melody
MELFL
Frequency
L-Reg
Melody
MELFH
Frequency
H-Reg
Alarm
Interrupt
ALMINT
Enable
Reg
Address
7 6
AL8 AL7
1330H
FC1 FC0
R/W
0
1331H
Free-run counter Control
00: Hold
01: Restart
10: Clear
11: Clear & Start
ML7 ML6
1332H
MELON
R/W
0
1333H Melody
counter
Control
0: Stop
and Clear
1: Start
1334H
Always write 0
5 4
AL6 AL5
R/W
Alarm –Pattern set
ALMINV
R/W
0
Alarm
Frequency
Invert
1: Invert
ML5 ML4
R/W
Melody
Frequency set (low 8bit)
IALM4E
INTALM4 to INTALM0
92CH21 - 488
3 2
AL4 AL3
0
Always write 0
ML3 ML2
0
ML11 ML10
R/W
0
Melody
Frequency set (upper 4bit)
IALM3E IALM2E IALM1E
R/W
0
Alarm
Interrupt Enable
TMP92CH21
1 0
AL2 AL1
MELALM
R/W
0
Output
Frequency
0: Alarm
1: Melody
ML1 ML0
ML9 ML8
IALM0E