XR-4880 Datasheet, PDF (6/7 Pages) Sony Corporation – AEP Model UK Model

6-6. IC PIN FUNCTION DESCRIPTION
• IC501 MASTER U-COM (MN101C12GTC1)
Pin No.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
Pin Name
VREF-
VSM
KEYIN1
KEYIN0
DBASS IN
DSTSEL
FUNC-SEL
–
RC-IN0
VREF+
VDD
OSC2
OSC1
VSS
XI
XO
MMOD GND
RC-IN1
SYSRST
BUSON
UNISO
UNISI
UNICKO
UNICKI
–
KEYACK
NOSESW
BU-IN
SIRCS
TELMUT
TEST-IN
RAMBU
RESET
VOL-MUT
BEEP
AMPMUT
AMPON
PLL-CKD
PLL-CE
PLL-SO
PLL-SI
LCD-SO
LCD-CE
LCD-CKO
VOL-SIO
–
VOL-CKD
ACC-IN
MUT
I/O
Function
– Basic voltage (- side) of AD conversion input
I FM/AM common signal meter A/D conversion input terminal
I
KEY (AD conversion) input
I
I Position detecting AD input terminal of D-BASS
I Terminal for setting to select the value of destination
I Function selecting (AD conversion) input
O Not used
I Rotary commander (AD conversion) input
I Basic voltage (+side) of AD conversion input
– Power supply
–
Radiator (18.432 MHz) connecting terminal
–
– Ground
–
Sub clock (for clock) radiator (32 kHz) connecting terminal
–
– Ground
I Rotary commander shift input
O SYSTEM RESET control output
O BUS ON control output
O Serial data output
I Serial data input
O Serial clock output
I Serial clock input
O Not used
I Key input acknowledge
I Removing/attaching front panel detection input
I BACK-UP detection input terminal
I Remote control input
I TELEPHONE MUTE detection input
I Test mode setting input terminal
I Reset detection input of RAM
I Reset input terminal
O Electrical volume mute control output
O Control output for buzzer
O Power amplifier mute control output terminal
O Power amplifier STANDBY control terminal
O PLL CLK output terminal
O PLL CE output terminal
O PLL DATA output terminal
I PLL DATA input terminal
O LCD serial data output
O LCD chip enable output terminal
O LCD serial clock output
O Electrical volume serial data output
O Not used
O Electrical volume serial data output
I Accessory power supply detection input
O System MUTE control output
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