XL-R2010BK
1-27
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
P50/A8
P59/A9
MCS
MRDY
CDINDEX
CDEMP
CDTNO
CDCOPY
VSS0
VDD0
P30
P31
P32
MUTE
SUBQ
P35/SO31
SQCK
KCMND
MSTAT
MCLK
RXDO
TXDO
P25/SCK0
VDD1
AVSS
KEY1
KEY2
PCHK
P14/AN14
P13/AN13
/OPEN
/REST
P10/AN10
AVREF
AVDD
/RESET
Connect to ground
Non connect
Pull-up +B
Non connect
Non connect
Detection of CD emphasis
Detection of CD track number
Detection of CD copy
Connect to ground
Power supply terminal
Non connect
Non connect
Non connect
Muting output
Sub-code Q data input from IC651
Non connect
Clock output for sub-code Q resistor to IC651
Kick command data output
CD control to IC801 (status output)
CD control from IC801 (command clock input)
Digital data input
Digital data output
Connect to ground
Power supply terminal
Connect to ground
Key input 1
Key input 2
parity check
Connect to ground
Connect to ground
OPEN switch input
REST switch input
Connect to ground
Standard voltage for analog circuit
(connect to power supply terminal for analog circuit)
Power supply terminal for analog circuit
CD control from IC801 (reset input)
-
-
-
-
-
I
I
I
-
-
-
-
-
O
I
-
O
O
O
I
I
O
-
-
-
I
I
I
-
-
I
I
-
-
-
I
Pin No.
I/O
UPD780024AGKB21 1/2
Symbol
Description
49
64
32
17
48 33
1 16
UPD780024AGKB21(IC251) : Unit microcomputer
1.Pin layout
2.Pin function