Kenwood KDC-BT7539U Service Manual page 10

KDC-BT7539U/BT8041U
/BT8141UY/BT838U
MICROCOMPUTER'S TERMINAL DESCRIPTION
● SUB μ-COM: 92CD28AFG6VV1 (X34-597: IC700)
Pin No. Pin Name
1 MRST
2 MSTOP
3 REQ_S
4 IPOD_RDY
5 BSIF_ST_REQ
6 VCC
7 XT1
8 XT2
9 PWE
10 DVSS
11 DVCC1B
12 RVOUT1
13 RVIN
14 RVIN
15 RVOUT2
16 DVCC1A
17 DVSS
18~22 NC
23 CD_CCE
24 CD_RST
25 NC
26 DVSS
27 DVCC3A
28 CD_REQ
29 CD_SRAMSTBY
30 CD_DRIVEMUTE
31 CD_PON
32~43 NC
44 DVSS
45 DVCC3A
46~61 NC
62 DVSS
63 DVCC3A
64 NC
65 ZDET_IN
66 CD_MUTE
67 REQ_M
10
I/O Application
- Reset
STOP signal from system μ-com (Momentary power down detec-
I
tion / Recovery to low power consumption mode)
I REQ signal from system μ-com
I RDY signal of iPOD authentication IC
I BSIF
- Power supply terminal (For PC port and PMC circuit)
Low frequency oscillator connection terminal
-
Sub-clock 32.768kHz
Low frequency oscillator connection terminal
-
Sub-clock 32.768kHz
- External power supply control output
- GND terminal
- Power supply terminal for built-in SRAM
Built-in regulator 1.5V output
-
(Flash version does not output voltage)
Built-in regulator power supply input
-
(Flash version has power supply terminal).
Built-in regulator power supply input
-
(Flash version has power supply terminal).
Built-in regulator 1.5V output
-
(Flash version does not output voltage)
- Power supply terminal for built-in logic
- GND terminal
O Not used
O Command I/F. CD mechanism chip enable terminal
O RESET. CD mechanism RST terminal
O Not used
- GND terminal
- Power supply terminal for peripheral I/O
Command I/F
I
Communication request terminal from mechanism DSP
O Decoder SRAM STANDBY control
O CD motor driver mute output
O CD mechanism power supply control output
O Not used
- GND terminal
- Power supply terminal for peripheral I/O
O Not used
- GND terminal
- Power supply terminal for peripheral I/O
O Not used
I ZDET. 0Bit Mute request terminal
O Mute request to system μ-com
O REQ signal to system μ-com
Processing Operation Description
L: RESET, H: Normal
H: Normal, L: SOC stop
L: Request
L: STOP
Output is fi xed to L
H: Normal, L: Reset
Output is fi xed to L
H: Data request
L: SRAM standby (6E**)
H: Power ON (6E**), Hi-z: Power OFF
Output is fi xed to L
Output is fi xed to L
Output is fi xed to L
L: Mute request, H: In normal condition
L: Mute request, H: In normal condition
L: Request