Kenwood KDC-MP638U Service Manual page 12

KDC-MP638U/W7041U
/W7141UY/X692/X7009U
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
66 CD_MUTE
67 REQ_M
68 IPOD_RST
69 BOOT
69,70 NC
71 BSIF_LRCK
72 AM1
73 X2
74 DVSS
75 X1
76 DVCC3A
77 USB_OC
78 USB_PON
79 USB_D+
80 USB_D-
81 AM0
82 CD_LOE_LIM_SW
83 DVSS
84 DATA_M
85 DATA_S
86 CLK
87 CD_SO
87 FLSH_UO
88 CD_SI
88 FLSH_UI
89 CD_CLK
90 ROMCOR_SDA
90 IPOD_SDA
91 ROMCOR_SCLK
91 IPOD_SCLK
92 BSIF_BCK
93 BSIF_DATA
94 BSIF_GATE
95 DVCC3A
96 NC
96 ROMCOR_DET
97~99 NC
100 DVSS
12
I/O Application
O Mute request to system μ-com
O REQ signal to system μ-com
O RESET
I Terminal for writing FLASH
O Not used
- BSIF
- Operation mode: Fixed to "1".
High frequency oscillator connection terminal
-
Main clock 9.00MHz
- GND terminal
High frequency oscillator connection terminal
-
Main clock 9.00MHz
- For power supply terminal and peripheral I/O
I USB over current detection
O USB PON output
- USB data connection terminal
- USB data connection terminal
- Operation mode: Fixed to "1".
I CD detection terminal (Chucking SW)
- GND terminal
O Serial I/F with system μ-com (Sending)
I Serial I/F with system μ-com (Recieving)
O Serial I/F with system μ-com (Clock output)
O Command I/F, Serial I/F (Sending)
O Terminal for writing FLASH
I Command I/F, Serial I/F (Receiving)
I Terminal for writing FLASH
O Command I/F, Serial I/F (Clock output)
I/O E2PROM I2C data I/O terminal for ROM correction
I/O I2C iPOD authentication data I/O terminal
I/O E2PROM I2C clock output terminal for ROM correction
I/O I2C iPOD authentication clock output terminal
- BSIF
- BSIF
O BSIF
- For power supply terminal and peripheral I/O
I Not used
I ROMCOR write detection
I Not used
- GND terminal
Processing / Operation / Description
L: Mute request, H: While in normal
L: Request
Output L fi xed
L: Detection, H: In normal condition
L: Loading completed, H: No disc
f=1M or less
"L" during other source
f=1MHz, "L" during other source
f=80kHz
"L" during other source
"L" during other source
H: Writing-in