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DIGITAL BOARD IC101 M30610MC-TTX1057M (SYSTEM CONTROLLER)
Pin No.
Pin Name
I/O
Function
1, 2
TEST
O
Not used (pull up)
3, 4
TEST
I
Not used (fixed at “H”)
5
SQSY
I
Subcode Q sync (SCOR) input from the CXD2535CR (IC121)
“L” is input every 13.3 msec Almost all, “H” is input
6
—
O
Not used (pull up)
7
PDOWN
I
Power down detection signal input terminal “L”: power down, normally: “H”
8
BYTE
I
External data bus line byte selection signal input “L”: 16 bit, “H”: 8 bit (fixed at “L”)
9
CNVSS
—
Ground terminal
10
XCIN
I
Sub system clock input terminal (32.768 kHz) Not used (fixed at “H”)
11
XCOUT
O
Sub system clock output terminal (32.768 kHz) Not used (pull up)
12
RESET
I
System reset signal input from the reset signal generator (IC451) “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
13
XOUT
O
Main system clock output terminal (10 MHz)
14
VSS
—
Ground terminal
15
XIN
I
Main system clock input terminal (10 MHz)
16
VCC
—
Power supply terminal (+5V)
17
NMI
I
Non-maskable interrupt input terminal (fixed at “H” in this set)
18
—
O
Not used (pull down)
19
DQSY
I
Digital In U-bit CD format subcode Q sync (SCOR) input from the digital audio interface receiver
(IC401) “L” is input every 13.3 msec Almost all, “H” is input
20
INT-CDSP
I
Not used (fixed at “L”)
21
F86-DEC
O
Not used (pull down)
22
—
O
Not used (pull down)
23
XINT-DEC
I
Interrupt status input from the ATRAC decoder (IC601)
24
XINT-ENC
I
Interrupt status input from the ATRAC encoder (IC501)
25
F86-ENC
O
Not used (pull down)
26 to 30
—
O
Not used (pull down)
31
SWDT
O
Writing data output to the CXA1981AR (IC101), CXD2535CR (IC121), digital audio interface
receiver (IC401), sampling rate converter (IC451, 751), ATRAC encoder (IC501), ATRAC
decoder (IC601) and CXD2720Q (IC801)
32
SRDT
I
Reading data input from the CXD2535CR (IC121), digital audio interface receiver (IC401),
ATRAC decoder (IC601) and CXD2720Q (IC801)
33
SCLK
O
Serial data transfer clock signal output to the CXA1981AR (IC101), CXD2535CR (IC121),
digital audio interface receiver (IC401), sampling rate converter (IC451, 751), ATRAC encoder
(IC501), ATRAC decoder (IC601) and CXD2720Q (IC801)
34
DTCS
O
Chip select signal output to the fluorescent indicator tube drive controller (IC201)
35
DTOUT
O
Serial data output to the fluorescent indicator tube drive controller (IC201)
36
DTIN
I
Serial data input from the fluorescent indicator tube drive controller (IC201)
37
DTCK
O
Serial data transfer clock signal output to the fluorescent indicator tube drive controller (IC201)
38
PMCU-RET
I
CTS (clear to send) input from the fluorescent indicator tube drive controller (IC201)
39
XLAT-DEC
O
Serial data latch pulse output to the CXA1981AR (IC101), CXD2535CR (IC121), digital audio
interface receiver (IC401), sampling rate converter (IC451, 751) and ATRAC decoder (IC601)
40
XLAT-ENC
O
Serial data latch pulse output to the ATRAC encoder (IC501)
41
RST-DSP
O
Reset signal output to the DSP (IC701) “L”: reset
42
DEEMP-ADA
O
Emphasis control signal output to the A/D, D/A converter (IC301)
43
LAT-KEY
O
Serial data latch pulse output to the CXD2720Q (IC801)
44
XWO-KEY
O
XWO output to the CXD2720Q (IC801)
