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Circuit Description
NEC-FA150ATUA
9.3 User Control
General Key Description
Exit:
Turn off OSM menu, Exit sub menu.
Control: Move the green cursor amd select control items.
Adjust: Change the value of each function / Enter to submenu / Proceed auto adjust / Proceed reset
Next:
Move the NEXT tag
Reset: Reset the select item (Open reset warning before reset) / Mute the speaker / headphone sound (short cut: when
no OSM menu is shown)
9.3.1 Related ports of I306
9.3.2 Functions
Control is effected for the push-switches to be used when the user changes the parameters, in order to modify the
respective setting values. Whether the switch has been pressed is identified with the switch input level that is
turned L.
Each switch input port is pulled up at outside of MCU.
Each parameter is stored in the EEPROM, the contents of which are updated as required.
9.4 Control of definition converter MCU I306.
9.4.1 Ports related to control
Port
Pin No.
I/O
Signal name
Function
Remarks
P3.5
55
1
RESET /
Mute
RESET switch input
MUTE switch input
The set value is
returned to the
initial value
P3.1
59
1
EXIT
EXIT switch input
Withdraw from
OSD
P3.4
56
1
DOWN
- switch input
( - ) key
P3.3
57
1
UP
+ switch input
( + ) key
P3.2
58
1
LEFT
switch input
( ) key
P3.6
54
1
RIGHT
switch input
( ) key
P3.7
53
1
NEXT
NEXT switch input
Pin No.
I/O
Signal name
Function
33
O
SSI
Serial data Input to M66611
34
I
SSO
Serial data Output to M66611
35
O
SCK
Serial clock Input to M66611
36
O
SCSB
Chip select to M66611
37
I
SRDYB
Ready output
