•
BD (MD) BOARD IC121
CXD2652AR
•
(DIGITAL SIGNAL PROCESSOR, DIGITAL SERVO PROCESSOR, EFM/ACIRC ENCODER/DECODER, SHOCK
•
PROOF MEMORY CONTROLLER, ATRAC ENCODER/DECODER, 2M BIT D-RAM)
Pin No.
Pin Name
I/O
Function
1
MNT0 (FOK)
O
Focus OK signal output to the MD system controller (IC316)
“H” is output when focus is on
2
MNT1 (SHCK)
O
Track jump detection signal output to the MD system controller (IC316)
3
MNT2 (XBUSY)
O
Monitor 2 signal output to the MD system controller (IC316)
4
MNT3 (SLOC)
O
Monitor 3 signal output to the MD system controller (IC316)
5
SWDT
I
Writing data signal input from the MD system controller (IC316)
6
SCLK
I
Serial clock signal input from the MD system controller (IC316)
7
XLAT
I
Serial latch signal input from the MD system controller (IC316)
8
SRDT
O (3)
Reading data signal output to the MD system controller (IC316)
9
SENS
O (3)
Internal status (SENSE) output to the MD system controller (IC316)
10
XRST
I
Reset signal input from the MD system controller (IC316)
“L”: reset
11
SQSY
O
Subcode Q sync (SCOR) output to the MD system controller (IC316)
“L” is output every 13.3 msec Almost all, “H” is output
12
DQSY
O
Digital In U-bit CD format subcode Q sync (SCOR) output to the MD system controller (IC316)
“L” is output every 13.3 msec
Almost all, “H” is output
13
RECP
I
Laser power selection signal input from the MD system controller (IC316)
“H”: recording mode, “L”: playback mode
14
XINT
O
Interrupt status output to the MD system controller (IC316)
15
TX
I
Recording data output enable signal input from the MD system controller (IC316)
Writing data transmission timing input (Also serves as the magnetic head on/off output)
16
OSCI
I
System clock signal (512Fs=22.5792 MHz) input terminal
17
OSCO
O
System clock signal (512Fs=22.5792 MHz) output terminal
18
XTSL
I
Input terminal for the system clock frequency setting
“L”: 45.1584 MHz, “H”: 22.5792 MHz (fixed at “H” in this set)
19
RVDD
—
Power supply terminal (+3.3V) (digital system)
20
RVSS
—
Ground terminal (digital system)
21
DIN
I
Digital audio signal input terminal when recording mode (for optical in)
22
DOUT
O
Digital audio signal output terminal when playback mode (for optical out)
Not used
23
ADDT
I
Recording data input from the A/D, D/A converter (IC201)
24
DADT
O
Playback data output to the A/D, D/A converter (IC201)
25
LRCK
O
L/R sampling clock signal (44.1 kHz) output to the A/D, D/A converter (IC201)
26
XBCK
O
Bit clock signal (2.8224 MHz) output to the A/D, D/A converter (IC201)
Clock signal (11.2896 MHz) output to the A/D, D/A converter (IC201)
Power supply terminal (+3.3V) (digital system)
Address signal output to the external D-RAM (IC124)
36
A06
O
37
A07
O
38
A08
O
39
A11
O
* I (A) for analog input, O (3) for 3-state output, and O (A) for analog output in the column I/O.
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