Microcomputer's Terminal Description - Kenwood KTC-HR100 Service Manual

Hd radio tuner
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MICROCOMPUTER'S TERMINAL DESCRIPTION

MICROCOMPUTER : 70F3030BYGC1R9 (X14 : IC11)
Pin No.
I/O
Pin Name
1
O
NC
2
O
SCK
3
O
RX
4
O
TX
5
O
NC
6
-
EVDD
7
-
EVSS
8,9
O
NC
10
O
MUTE1
11
O
REQC1
12
I
DATA_I
13
O
DATA_O
14
O
LCD_CLK
15
O
LCD_CE
16
O
LCD_RST
17
O
NC
18
I
IC/VPP
19
O
RELAY
20
O
A_MUTE
21
O
PON_M
22
O
PON_A
23~30
O
NC
31
I
RESET
32
I
-
33
-
NC
34
-
-
35
-
X2
36
I
X1
37
-
VSS
38
-
VDD
39~54
O
NC
55
-
BVDD
56
-
BVSS
57
O
TU_I2C_SW
58
I
BLEND
59
O
7724_BLEND
60
O
IDM_RESET
61
O
FM_ON
62
O
AM_ON
Function
Not connect
I2C clock output
UART input
UART output
Not connect
Power supply for port
Ground for port
Not connect
5L I/F to H/U
5L I/F to H/U
Data input from outside driver IC
Data output to outside driver IC
Clock output to outside driver IC
Chip enable for outside driver IC
Reset for outside driver IC
Not connect
For write program enable
Audio source selection
Audio mute output
Output for power on main
Output for power on audio
Not connect
Reset input
Un-use (pull down)
Not connect
Capacitor connection for regulator stabilization
Resonator connection for main clock
Resonator connection for main clock
Ground
Power supply
Not connect
Power supply for BUS interface
Ground for BUS interface
Data output for tuner I2C on / off switching
Data input for digital / analog switching
Data output for digital / analog switching
Reset for IDM
Output for FM filter power control
Output for AM filter power control
KTC-HR100
Processing Operation Description
H : write mode, L : normal
H : CD-CH, L : HD-RADIO
H : normal, L : mute on
H : power on, L : power off
H : power on, L : power off
H : not reset, L : reset
L : off, H : on
L : analog, H : digital
L : analog, H : digital
L : reset, H : normal
L : filter off, H : filter on
L : filter off, H : filter on
5

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