6
DPX502/502U/502UY
DPX-MP5100U
MICROCOMPUTER’S TERMINAL DESCRIPTION
●
SYSTEM µ-COM: IC102 on X34- (ELECTRIC UNIT)
Pin No.
Pin Name
I/O
Application
Truth
Value Table
Processing / Operation / Description
1
REMO
I
External display remote control input
and panel remote control input
2
LX REQ M
O
Communication request to slave unit
3
LX MUTE
I
Mute request from slave unit
H: Mute ON, L: Mute OFF
4
LX CON
O
Start-up request to slave unit
H: Slave unit ON, L: Slave unit OFF
5
LX RST
O
Forced reset to slave unit
H: Reset, L: Normal
6
BYTE
-
GND
7
CNVSS
-
Pull-down
8
XCIN
-
Sub clock (32.768kHz)
9
XCOUT
-
Sub clock (32.768kHz)
10
RESET
-
11
XOUT
-
Main clock (12.00MHz)
12
VSS
-
GND
13
XIN
-
Main clock (12.00MHz)
14
VCC1
-
15
NMI
-
Pull-up
16
LX REQ S
I
Communication request from slave unit
17
RDS CLK
I
RDS decoder clock input
18
NC
-
Not used
Output L fi xed
19
PON AM
I/O AM power supply control
Receiving AM: H, Not receiving AM: HI-Z
20
TUN IFC OUT
I
Front-end IFC OUT input
H: Station found, L: No station
21
RDS AFS M
I/O Noise detection time constant switching
22
RDS QUAL
I
RDS decoder QUAL input
23
RDS DATA
I
RDS decoder data input
24
USB SYNC
O
Clock output for SW-REG
25
NC
-
Not used
Output L fi xed
26
PWIC BEEP
O
Beep output
27
TUN SCL
I/O Front-end I2C clock input/output
MAX. 400kHz
28
TUN SDA
I/O Front-end I2C data input/output
29
VFD DATA
I/O VFD data input/output
Data input/output
30
VFD INT
I
VFD INT input
INT input
31
VFD CLK
O
VFD clock output (125kHz)
32
VFD RST
O
VFD reset
H: Reset released, L: Reset
Momentary power down, Panel detached, 11 minute after
ACC OFF: L
33
S SYS DATA
O
Data output from system µ-com to SOC
34
S SOC DATA
I
Data input from SOC to system µ-com
35
S SOC SCL
I
Clock input from SOC to system µ-com
36~38
NC
-
Not used
Output L fi xed
39
ROMCOR DET
I
E2PROM writing request
H: Writing
