Kenwood DDX7032 Service Manual page 16

DDX7032/7032M/712
DNX7120/7220/7320
MICROCOMPUTER'S TERMINAL DESCRIPTION
Pin No. Pin Name
30 SAT_RX
31 EM_CLK
32 BUSY
33 SYS_SDATA
34 SYS_MDATA
35 SYS_MCLK
36 SYS_SREQ
37 SYS_MREQ
38 NC
39 EPM
40 SIR_DET
41 SIR_PON
42 SAT_RST
43 SAT_CON
44 CE
45 SEL_SCL
46 SEL_SDA
47 V_DET
48 AV_PDN
49 NC
50 AVOUT_SEL
51 NC
52 NC
53 TUN_IFC
54 R_AFS_H
55 AM+B
56 R_DATA
56 NC
57 R_QUAL
57 NC
58 PRE_MUTEF
59 PRE_MUTER
60 VCC2
61 PRE_MUTESW
62 VSS
63 AUDIO_MUTE0
64 AUDIO_MUTE1
65 AUDIO_MUTE2
66 AUDIO_MUTEA
67 AUDIO_MUTEB
68 AUDIO_MUTEC
16
I/O Application
I Communication with SAT
I Communication with emulator
O Output of BUSY signal during writing-in
O Communication between μ-coms
I Communication between μ-coms
I Communication between μ-coms
O Communication between μ-coms
I Communication between μ-coms
O Not used
I Emulator connection
Detection of SIRIUS (13P↔8P conver-
I
sion cable) connection
O SW14 control (K, R)
O SAT RESET (K,R)
O Communication with SAT (K, R)
I Emulator connection
O ASEL control
I/O ASEL control
I Video signal detection
O ASEL control RESET
O Not used
O AVOUT SEL control (Not used)
O Not used
O Not used
I RADIO TUNER control
O RADIO TUNER control
O RADIO TUNER control
I RDS control (K, E, M, R)
O Not used (X, V)
I RDS control (K, E, M, R)
O Not used (X, V)
O F pre-out mute
O R pre-out mute
-
O SW pre-out mute
-
O EVOL rear stage mute
O EVOL rear stage mute
O EVOL rear stage mute
O EVOL front stage mute (Not used)
O EVOL front stage mute
O EVOL front stage mute
True Value
Processing Operation Description
Table
Output is fi xed to L
Logic is fi xed by pull down
H: Connected, L: Not connected
H: ON, L: OFF
Logic is fi xed by pull up.
I2C CLK
I2C DATA
Output is fi xed to L
Not used. Output is fi xed to L
Output is fi xed to L
Output is fi xed to L
H: Station found, L: Station not found
H: AM, L: EXCEPT
Output is fi xed to L
Output is fi xed to L
H: MUTE OFF, L: MUTE ON
Not used. Output is fi xed to L
H: MUTE OFF, L: MUTE ON
H: MUTE OFF, L: MUTE ON
H: MUTE OFF, L: MUTE ON
H: MUTE OFF, L: MUTE ON
Not used. Output is fi xed to L
H: MUTE OFF, L: MUTE ON
H: MUTE OFF, L: MUTE ON