Kenwood DPX 8020 MD Service Manual

Page 2

DPX-802OMD

MICROCOMPUTER'S TERMINAL DESCRIPTION

(X14-) lC1 :System u-com

PIN No. Pin Name I/O Description Processing Operation
1 DSP DATAOUT O DSP data output
2 DSP CLK O DSP clock output
3 DSP SEL O DSP selector
4 DSP RST O DSP reset L: Reset
5 DATAH 0 External CH data output
6 DATAC | External CH data input
7 CHCLK l/O External CH clock in/output
8 BYTE | External data bus width switching
9 CNVSS l Processor mode switching
10 CHCONt 0 External CH1 select
11 NC 0 Not used
12 RESET | Reset input L: Reset
13 XOUT 0 System clock output
14 V88 | GND
15 XIN | System clock input
16 VCC | Power input
17 NMI | -
18 PN REQ l Panel communication request
19 BU DET | | B.U detection H: Power down
20 REQC | External CH reception request
21 PWIC SVR 0 Power IC control H: ON
22 PON O Power control H: ON
23 PWIC STBY 0 Power IC standby H: ON
24 AMP CTRL 0 External amp control
25 TEST 0 Power IC control L: Test mode
26 BUZZ O Beep output
27 PCON 0 External amp control H: ON L: ALL OFF
28 PANT 0 Power antenna control H: ON
29 SCL l/O |2C clock output
30 SDA l/O |2C data in/output
31 SYS DATA 0 SYS data output (FLASH TXD)
32 PN DATA | Panel data input (FLASH RXD)
33 PN CLK 0 Panel clock output (FLASH SCLK)
34 SYS REQ O SYS communication request (FLASH BUSY)
35 TEL DAOUT O -
36 TEL DAIN | -
37 TEL MUTE O - H: TEL MUTE ON
38 CRSC 1 | CRSC switching
39 NC | Not used
40 ILLUMI | Illumination detection L: Illumination ON
41 LAMP O Lamp control (FLASH EPM) H: ON
42 ACC DET | ACC detection H: ACC OFF
43 PCON IN | P CON input H: Protection ON
44 LED CD 0 LED Control (CD) H: LED ON
45 LED MD 0 LED control (MD) H: LED ON
46 PN SCCON 0 Panel u-com control (FLASH CE) L: ON
47 LED LOGO 0 LED control (LOGO) H: LED ON
48 DCDC24 O DC/DC control H: 24V Output
49 PMOT1 0 Panel motor control 1
50 PMOT2 0 Panel motor control 2