DPX-MP5070
4
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM MICROCOMPUTER : MN101C49HNH (MAIN PWB UNIT : IC1)
Pin No.
Pin Name
I/O
Function
Truth Value
Processing Operation Description
Table
1
VREF-
-
Reference power supply (-)
2
REEL_S
I
Cassette mechanism reel rotation detection
3
REEL_T
I
Cassette mechanism reel rotation detection
4
DC_ERR
I
Power IC offset voltage monitoring
5
LINE_MUTE
I
Line mute detection
6
ACC_DET
I
ACC power supply detection
H : ACC OFF
7
ILLUMI_DET
I
Dimmer illumination detection
L : ILLUMI ON
8,9
NC
I
10
VREF+
-
Reference power supply (+)
11
VDD
-
Microcomputer power supply terminal
12
OSC2
-
Main clock output
13
OSC1
-
Main clock input
14
VSS
-
Microcomputer GND terminal
15
XI
-
Sub-clock input
16
XO
-
Sub-clock output
17
MMOD
-
Memory mode setting
18
LX_DATA_M
O
Data to slave unit
19
LX_DATA_S
I
Data from slave unit
20
LX_CLK
I/O
LX BUS clock
21
SYS_DATA
O
Between-panel communication output
22
PN_DATA
I
Between-panel communication input
23
PN_CLK
O
Between-panel communication clock
24
PWIC_BEEP
O
Beep output
25
NC
O
Detection of momentary power down
L : Normal, H : Momentary power down
Communication request from slave unit
Panel detection
L : Close, H : Open
Between-panel communication control
L : Panel-side data in transmission
Microcomputer power supply
Microcomputer power supply
L : Reset
37~39
MODE1~MODE3
I
Cassette mechanism status detection SW1~SW3
40
NC
O
41
VPP
-
Power supply terminal for writing to flash memory
42
SYS_REQ
O
Between-panel communication control (FLASH BUSY)
H : Panel-side data in reception
43
PN_SCCON
O
Between-panel communication control (FLASH CE)
L : Communication start request
44
NC
O
45
SDA/CD_SDA
I/O
CD mechanism I2C data input/output terminal
SDA/E2PROM_SDA
I/O
E2PROM write terminal
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9
2
8
9
4
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9
8
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9
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2
9
8
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5
1
5
1
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