6
DPX301
DPX-MP2090/MP2090S
MICROCOMPUTER’S TERMINAL DESCRIPTION
Pin No.
Pin Name
Module
I/O
Application
Truth
Processing Operation Description
value table
29
VFD_DATA
to PANEL I/O
VFD data input/output terminal
Data input/output
30
VFD_INT
to PANEL
I
VFDINT input terminal
INT input terminal
31
VFD_CLK
to PANEL O
VFD clock output terminal
Normal: 125kHz
Low consumption mode: 62.5kHz
H: Clear RESET, L: RESET
32
VFD_RST
to PANEL O
VFD driver reset terminal
L: Momentary power down, when panel
detached and 11 minutes after ACC_OFF
33
SDA/CD_SDA
CD
I/O
CD mechanism I2C data input/output
terminal
33
SDA/ROMCOR_SDA
EXTRA
I/O
E2PROM I2C data input/output
terminal for ROM correction
34
SCL/CD_SCL
CD
I/O
CD mechanism I2C clock output terminal
34
SCL/ROMCOR_SCL
EXTRA
I/O
E2PROM I2C clock output terminal for
ROM correction
35
PON_PANEL
Power supply I/O
Panel 5V control terminal (FLIP model)
L: ON, Hi-Z: Momentary power down, when
panel detached and 11 minutes after ACC_OFF
36
DSI
EXTRA
I/O
DSI/EJECT_LED (FLIP only)
Hi-z: OFF, Pulse drive: When PANEL detached
control terminal
H: ILL_ON and OPEN (when Power_ON)
36
NC
O
Not used (2DIN)
Output L fixed
37,38
NC
O
Not used
Output L fixed
39
EPM
µ
COM
I
FLASH EPM input terminal
40
PANEL_DET
EXTRA
I
Panel detection (FLIP only)
L: PANEL detached, H: PANEL attached
40
NC
O
Not used (2DIN)
Output L fixed
41
NC
O
Not used
Output L fixed
42
ROMCOR_DET
EXTRA
I
E2PROM writing-in request
H: Writing-in
43
NC
O
Not used (no USB model)
Output L fixed
43
PON_FL
Power supply
O
FL+B control (USB model)
H: FL+B ON, L: FL+B OFF
44
VFD_CS
to PANEL O
VFD chip select control terminal
45
ROTARY_CW
to PANEL
I
VOL key input
Detect pulse width
46
ROTARY_CCW
to PANEL
I
VOL key input
Detect pulse width
47
CD_DISC12_SW
CD
I
CD disc detection terminal (12cm)
48
CD_LOS_SW
CD
I
CD loading detection terminal
49
CD_MUTE_R
CD
I
CD MUTE (Rch) request terminal
H: Normal, L: Rch mute request (valid only
when in CD mode)
50
CD_MUTE_L
CD
I
CD MUTE (Lch) request terminal
H: Normal, L: Lch mute request (valid only
when in CD mode)
51
CD_MRST
CD
O
CD mechanism
µ
-com RST terminal
H: Normal, L: RESET
52
CD_MSTOP
CD
O
CD mechanism
µ
-com stop terminal
H: Mechanism
µ
-com in operation
L: Mechanism
µ
-com stop
