Microcomputer's Terminal Description - Kenwood FZDA07ELEF2 Service Manual

FZDA07ELEF2/EREF2/MRHF2

MICROCOMPUTER'S TERMINAL DESCRIPTION

● SYSTEM MICROCOMPUTER 30875FHAGP5Y0 (X34-485: IC7)
Pin No. Pin Name
1 N.C. (TP_TX)
2 ILL_DET+
3 ILL_DET-
4 IGN_DET
5 SP_DATA_S
5 N.C.
6 SP_DATA_P
6 N.C.
7 N.C. (PAL_NT)
8 SA_REQ_A
9 SA_REQ_S
10 A_RST
11 SA_ACC_S
12 SA_BU_S
13 PTT
14 WDP
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 EJECT
28 CAN_EN
29 CAN_ERR
30 CAN_IN
31 CAN_OUT
32 CAN_STB
33 DC_DC_CLK
34 FAULT
35 DISC_DET
14
I/O Application
- Not used
I ILL+ detection (small)
I ILL- detection (pulse input)
I IGN detection
O System µ-com → Panel µ-com data output
- Not used
I Panel µ-com → System µ-com data output
- Not used
Not used
-
(Reserved for discrimination between 50 and 60)
Audio µ-com → System µ-com transmission
I
request input
System µ-com → Audio µ-com transmission
O
request output
O Reset to audio µ-com
O ACC detection output to audio µ-com
O Reduced power detection output to audio µ-com
I PTT switch input
O Watch dog port
- BUS width switching
- Processor mode setup
- Not used
- Not used
- µ-com hard reset
- Main clock (10MHz crystal oscillator)
-
- Main clock (10MHz crystal oscillator)
-
I Not used
I ACC detection
I BU detection
I Eject
O CAN transceiver enable output
I CAN transceiver ERROR input
I CAN transceiver DATA input
O CAN transceiver DATA output
O CAN transceiver STANDBY output
O DC/DC clock output
O FAULT indication
I DVD mechanism DISC detection
Truth Value
Processing Operation Description
Table
OPEN
ILL ON: L
H: ON, L: OFF, Pulse input
Adjust luminance with duty ratio
IGN ON: L, IGN OFF: H
[A07 system] UART 19200bps (19330bps)
[D07 system] OPEN
[A07 system] UART 19200bps (19330bps)
[D07 system] OPEN
OPEN
H (Release): After the reset release initial setup
H: Standby request
H: Momentary power down process request
L: Key is pressed
Self reset
Vss: In single chip mode
Vss: In single chip mode
OPEN
OPEN
RESET: L
Multiplication with 3 (Internally 30MHz)
GND
Multiplication with 3 (Internally 30MHz)
BU5V
Pull up through register
ACC ON: L, ACC OFF: H
L: BU ON, H: BU OFF (at momentary power down)
[D07 system Oversea] Invalid when Acc is off
[D07 system Domestic] Ejected by pressing
and holding during OFF
[A07 system] Forced ejection when Acc is off
H: Enable request
H, L input, Error: L
H, L input (125kbps)
H, L output (125kbps)
L: Standby request
385kHz/357kHz output
H: Key LED ON
L: DISC is found