Kenwood DNX4280BT Service Manual page 14

DNX4280BT/5180/5280BT/5380/5380M
/5380BT/5580BT/6040EX/6180/6480BT/6980
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
16~19 NC
20 BL_SYNC
21 NC
22 BL_PWM
23 BL_ENA
24 NC
25 BL_SW
26~28 NC
29 FLASH_DO
30 FLASH_DI
31 FLASH_CLK
32 BUSY
33~38 NC
39 EPM
40~43 NC
44 CE
45 PANEL_SDATA
46 PANEL_MDATA
47 PANEL_MCLK
48~50 NC
51 PON_VD5.0V
52 RCAM_INT
53 NC
54~56 TYPE0~TYPE2
57~59 NC
60 VCC2
61 NC
62 VSS
63 NC
64 PANEL_SREQ
65 PANEL_MREQ
66 BL_PDET
67 CP_RESET
68 CP_SDA
69 CP_SCL
70 NC
71 MST_RESET
72 MST_WAIT
73 PANEL_VMUTE
74 NTSC/PAL
14
I/O Application
-
O Sync signal
-
O Backlight luminance control
O Backlight on / off control
-
O For LED driver F.R. frequency switching
-
O For writing data in FLASH
I For writing data in FLASH
I For writing data in FLASH
O
-
I For writing data in FLASH
-
I
O SoC communication data output
I SoC communication data input
I SoC communication clock input
-
O VD5V SS circuit control
I RCAM interruption at start-up
-
I Destination setting
-
-
-
-
-
O SoC communication request
I SoC communication request
Backlight power supply power reduction
I
detection
O IC control for IPOD authentication RESET
I/O IC control for IPOD authentication I2C DATA
I/O IC control for IPOD authentication I2C CLK
-
O MST7912 RESET
I MST7912 communication Wait
O LCD display VMUTE control
I RCAM NTSC / PAL determination
Truth value
Processing / Operation / Description
table
Hi: ON
While writing: Lo
While writing: Hi
Hi: ON
Lo: Set RCAM, MST to RCAM
q sheet: Type
Hi: BL_ENA can be set to Hi, Lo: Power supply
power reduction detection → BL_ENA: Lo
Lo: RESET
Lo: RESET
Lo: MST_I2C command transmission stop
Lo: VMUTE
Hi: NTSC, Lo: PAL