TMP92CZ26A

92CZ26A-743

(21) Melody/alarm generator

Symbol Name Address 7 6 5 4 3 2 1 0
AL8 AL7 AL6 AL5 AL4 AL3 AL2 AL1
R/W
0 0 0 0 0 0 0 0
ALM Alarm-
pattern
register 1330H
Alarm pattern setting
FC1 FC0 ALMINV − − − − MELALM
R/W
0 0 0 0 0 0 0 0
MELALMC
Melody/
alarm
control
register
1331H Free run counter
control
00: Hold
01: Restart
10: Clear
11: Clear and start
Alarm
frequency
invert
1: Invert Always write “0”.
Output
frequency
0: Alarm
1: Melody
ML7 ML6 ML5 ML4 ML3 ML2 ML1 ML0
R/W
0 0 0 0 0 0 0 0
MELFL Melody
frequency
L-register 1332H
Melody frequency set (Low 8bit)
MELON ML11 ML10 ML9 ML8
R/W R/W
0 0
0 0 0
MELFH Melody
frequency
H-register 1333H
Melody
counter
control
0: Stop
and
clear
1: Start
Melody frequency set (Upper 4 bits)
− IALM4E IALM3E IALM2E IALM1E IALM0E
R/W
0 0
0 0 0 0
ALMINT
Alarm
interrupt
enable
register
1334H
Always
write “0”.
1:INTALM4
(1Hz)
enable
1:INTALM3
(2Hz)
enable
1:INTALM2
(64Hz)
enable
1:INTALM1
(512Hz)
enable
1:INTALM0
(8192Hz)
enable