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KDC-MP819/X659/Z838
7
Pin No.
Pin Name
I/O
Description
Processing Operation
28
ACC DET
I
ACC detection terminal
Lo: ACC ON, Hi: ACC OFF
29
SW5V
I/O SW5V control terminal
Lo: SW5V ON, Hi-Z: SW5V OFF
30
MUTE
I/O MUTE output
Lo: Muting OFF, Hi-Z: Muting ON
31
O CE
I/O External display CE terminal
32
O CLK
I/O External display clock terminal
33
O DATA
I/O External display data terminal
34
RESET
I
Reset input
Lo: System reset , Hi: Normal operation
35
XT1
I
Sub clock resonator connection terminal
Clock count during POWER OFF mode
36
XT2
-
Sub clock resonator connection terminal
37
REGC
-
Capacitor connection terminal for regulator inside
microprocessor
38
X2
-
Main clock resonator connection terminal
Oscillation: POWER ON mode, Oscillation stop:
POWER OFF mode or momentary power down
detected
39
X1
I
Main clock resonator connection terminal
40
VSS
-
Ground connection terminal
Connected to GND lines.
41
VDD
-
Positive power supply connection terminal
Connected to BU 5V lines.
42
CLKOUT
O
Internal system clock output
Not used(N.C.)
43
NC
O
Not used(N.C.)
44
E2PDET
I
EEPROM detection input
Lo: No EEPROM, Hi: With EEPROM
45
PRE MUTE L
O
Pre-out muting L Ch. control output
Lo: When M MUTE L input is Lo during CD source
selected or Momentary power down detected, Hi:
Fix in the case of 2 zone mode
46
PRE MUTE R
O
Pre-out muting R Ch. control output
Lo: When M MUTE R input is Lo during CD source
selected or Momentary power down detected, Hi:
Fix in the case of 2 zone mode
47
DSP DATA
O
Data output to DSP IC
Not used(N.C.)
48
DSP LATCH
O
Latch output to DSP IC
Not used(N.C.)
49
DSP CLK
O
Clock output to DSP IC
Not used(N.C.)
50
AFS
O
Noise detection time constant switching terminal
Lo: During FM seek or AF search, Hi: During FM
reception, Hi: During last FM mode with RDS/
RDBS model
51
AM+B
I/O AM+B control
Hi: During AM reception
52
FM+B
I/O FM+B control
Hi: During FM reception, Hi: During last FM mode
with RDS/RDBS model
53
R QUAL
I
Quality input from the RDS decoder IC
Except RDS, RBDS model: Not used(pull down to
GND lines)
Data input from the RDS decoder IC
Except RDS, RBDS model: Not used(pull down to
GND lines)
Lo: Initial value(default)
Lo: Initial value(default)
Hi-Z: POWER OFF mode, Hi: POWER ON mode
Positive power supply connection terminal
Connected to BU 5V lines.
Connected to GND lines.
Destination type selection terminal 0
Destination type selection terminal 1
Destination type selection terminal 2
63
TYPE3
I
Destination type selection terminal 3
64
AUX SW
O
CD/AUX input switching output
Lo: Except AUX input, Hi: AUX input
65
ILL ON
I/O FL/Illumination AVR ON/OFF control output
Hi-Z: AVR OFF, Hi: AVR ON
66
MOSW
O
CD mechanism loading motor control output
Hi: CD loading/eject action or Break, Lo: Other
67
LO/EJ
I/O CD mechanism loading/Eject switching output
Lo: Loading, Hi: Eject, Hi-Z: Stop or Break
68
M STOP
O
Stop request to CD mechanism MI-COM.
Lo: Stop mode, Hi: Operation mode
69
M RST
O
Reset output to CD mechanism MI-COM.
Lo: Reset
70
CH CON
O
Changer control
Lo: Standby mode, Hi: Operation mode
71
CH RST
O
Reset output to changers
: Reset
72
CH REQH
O
Request output to changers
Lo: Request
73
AVCONT
O
A/D converter reference voltage control output
Hi: Active, Connected to AVREF terminal
MICROCOMPUTER'S TERMINAL DESCRIPTION
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