Microcomputer's Terminal Description - Kenwood DDX5032 Service Manual

MICROCOMPUTER'S TERMINAL DESCRIPTION

● SYSTEM MICROCOMPUTER 30878MJBA21GP (X34-575: IC104)
Pin No. Pin Name
1 EVOL_SDA/EVOL_SDA
1 EVOL_SDA/E2P_SDA
2 TV_MC_REQ
2 NC
3 TV_SC_CON
3 NC
4 VSYNC_DET
5 VOL+
6 VOL-
7 HSY
8 VD
9 SRC
10 TV_SC_REQ
10 NC
11 REVERSE
12 PWIC_STBY
13 INV_PWM
14 PWIC_MUTE
15 BYTE
16 CNVSS
17 XCIN
18 XCOUT
19 RESET
20 XOUT
21 VSS
22 XIN
23 VCC1
24 NMI
25 ACC_DET
26 BU_DET
27 R_CLK
27 NC
28 NC
29,30 NC
31 PWM
32 PARKING
33 BEEP
34 NC
35 POWER_PWM
36 NAV_RX
37 NAVI_TX
38 TV_MC_DATA
I/O Application
I/O Communication data with E-VOL
O Communication data with E2P
O Request to TV μ-com
O Output from model without TV is fi xed to "L"
O Request to start TV μ-com
O Output from model without TV is fi xed to "L"
I Video external input detection
I Detects VOL key
I Detects VOL key
I HD input
I VD (VSYNC) input
I Source key
I Request from TV μ-com
O Output from model without TV is fi xed to "L"
I Reverse detection
O Power IC standby
O Inverter frequency control (Output by timer)
O Power IC output mute control
I ACC detection
I Backup power supply detection
I Clock input from RDS decoder
Output from model without RDS is fi xed to "L"
O
(To destination X and V)
O
O
O LCD brightness control (PWM output)
I Parking detection (For all the destinations)
O BEEP
O
O Frequency control of DC-DC_IC (CLK output)
I Communication with navigation system
O Communication with navigation system
O Data output to TV μ-com
DDX5022/5022Y/5032/5032M/512/52RY
DNX5120/512EX/5220/5220BT
Processing / Operation / Description
Detects if there is VSYNC signal or not
Detects pulse width
15 pulses/360°, 2 clicks, 1 pulse
Detects pulse width
15 pulses/360°, 2 clicks, 2 pulse
Counts HD
L: Detection, H: Normal
H: ON, L: OFF
H: OFF, L: ON
H: ACC reduced power detection
H: Backup reduced power detection
Not used. Output is fi xed to "L"
PWM output synchronized with VSY
H: Detection, L: When car is running
PWM output
11