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5A]
9
Terminal
Function of IC
9.1.
1C503(000874720):
System Control
No.
Name
| 1 | DISPREQ | 1 [Request signal input
| 2 | acc out | 0 [Power supply control signal output
| 3 | BUS ACC _| O [System power supply control signal output_|
14 | AVss | - [GND
| 5 | BUSRST | O [Reset signaloutput
|.6 | CCBCE | 0 [Chip enable signal output
[7 | AVREF1 | - |Notused, connected toVpp
| 8 | ccadl | 1 [Datasignalinput
|_9 | CCBDO | O [Data signaloutput
| 10] cca ct [0 [Clock signal
output
[311] BUS SI] 1 [Serial data
input
| 12 | BUSSO | 0 [Serial data
output
BUS SCK_|
O [Serial clock signal output
| 14 | BUS C/D_| O [Command data signal output
L.15 | BUS CS | O [Chip select signal
output
[16 | RDS DI_| 1 [Serial data input from 1C801_
DISP/RDS
al es data output for LCD and IC801
sO
DISP/ADS
ka Serial clock output for LCD and IC801
SCK
DISP CE | O [Chip enable output for LCD
KS1
|
I
Key source signal output
26
KS7
27
K11
I
I
Key return signal input
30
K14
;
[31 | MODED | | [Mode switch signalinput
| 32 | MODE U_| 1 |Mode switch signalinput
eg
Weg
GND
| 34 | VMODE
D [|_| [V mode switch signal input
| 35 | VMODE U | 1 |V mode switch signal input
|
[36 | CBH/S | - |Notused
| 37 | AUH/S
| O [Audio sound select signal output
|. 38 | CPURUN | O [CPU run signal output
'39 | AMB1__| O_[AMB control signal
output
| 40 | AMB | O JAMB ON/OFF signal
output
[41 | MUTE | © [Audio mute signal output
Feed Meee
a Power amp ON/OFF control signal output
for speaker
ies ese
oe Power amp ON/OFF control signal output
for headphone
.
| 44 | SwsV__| © |Power supply control signal output
|45| ATT | O [Audio ON/OFF control signal output
Bal illest
speaker
om | esac
INTERCOM
interrupt mute
ef | eesti Seto
i
microphone volume control and mute
(is aad
Electric volume clock output for
INTERCOM microphone volume control
| 50 | BEEP | O [Beep signal
output
and mute
51 | HS MUTE
Power amp mute control signal output for
headset
[52] NC | - [Notused
|53 | NC | - [Notused
| 54 [ROS RESET] O |RDS reset signal output
}55{ NC | - [Notused
56
RDS LSi
RDS sync detect signal input
SYNG
NOISE ON | O [Noise on signal output
32
Fel alba
Name
| 58 | FM
MUTE |
| 60 | RESET |
| 61 | SPEED |
63
ACC ON/OFF signal input
.
| 0 |
Lt |
|_t |
ae
Lt |
Lt |
[64 | CBSCK | - |Notused
[65 {| IRQIN | 1 |Requestsignalinput
[66 | RDS CE | O [RDS chip enable signal output
67 | Ves0 | = JGND
|
| 68 | Voot__|_1 [Power supply terminal
ote
em
ER a
(oda
[7i[ ic | = [Connected toVss
72 | XT, fs [Noted
}73 {| xT1_ | = |ConnectedtoVss
[74 | AVp90__ [1 [Power supply terminal
[75] AVREFO | 1 [Reference voltage
input
[76 | SMETER | 1 [Smetervoltage
input
177 | FANCAD
| | [Key detect signal input
MODEAD | 1 [Mode detect signal input
|79[ DIVER | 1 |RDSnoise detect signal
| 80 [NOISE
DET] | |
RDS noise detect signal
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