48
M-AX10
EEPROM writing
LED processing
Switching processing
Silent processing
Fig.3 Timing chart when INPUT key is pressed
4.2 INPUT switching
INDICATOR port processing and switching process start 30 ms
after INPUT key input [port 39 (INPUT)(Pin39): "L"].
No muting process is performed.
INPUT key is pressed.
1
2
40 msec
3
4
40 msec
EEPROM writing
(OFF
→
ON)
EEPROM writing
(ON
→
OFF)
VOL. transfer
(ON
→
OFF)
LED processing
Port processing
SILENT processing
HOLD processing
(OFF
→
ON)
SILENT
(OFF
→
ON)
SILENT
(ON
→
OFF)
Fig.4 Timing chart when ATT. HOLD key is pressed
Fig.5 Timing chart when ILL key is pressed
4.3 ATT.HOLD Key Processing
ATT. HOLD key is pressed.
typ. 8 msec
1
ILL key is pressed
1
2
typ. 1 msec
2
typ. 0 msec
4
5
typ. 10 msec
3
6
3
6
’
Upon ATT.HOLD key input, the specified current volume value
is held.
While ATT.HOLD is ON, the volume level stays at the held value
even if the volume control is operated.
In Muting mode (when the power is turned on or ATT.
THROUGH is switched from ON to OFF), the ATT.HOLD key is
disabled.
4.4 ILL Key Processing
Each press of the key cycles Bright, Dark, Lamp Off, and LED
Off.
Fig.6 Timing chart when volume is input
4.5 VOL Key Processing
4.6 Invalid Key Input
4
Data transfer
to DAC
SILENT processing
VOL input valid
VOL operation
typ. 15 msec
1
An invalid key is pressed.
typ. 16 msec
2
5 sec
3
Fig.7 Timing chart when an invalid key is pressed
1
SILENT processing
5 sec
