74
XC-IS21MD
No.
Name
I/O
Description
32
RAA4
Address output to external D-RAM; ADR4
|
|
O
|
36
RAA8
Address output to external D-RAM; ADR8
37
RAOEX
O
Data output enable signal output to external D-
RAM
38
DGND
–
Digital GND
39
RACASX
O
Column address strobe signal output to external
D-RAM
40
RAD2
I/O
External D–RAM and data input/output; D2
41
RAD3
I/O
External D-RAM and data input/output; D3 (MSB)
42
RAA9
O
Address output to external D-RAM; ADR9
43
RARASX
O
Low address strobe signal output to external D-
RAM
44
RAWEX
O
Data write enable signal output to external D-
RAM
45
RAD1
I/O
External D-RAM and data input/output; D1
46
RAD0
I/O
External D-RAM and data input/output; D0 (LSB)
47
∗
TCRS
O
Track cross signal
48
∗
ACRCER
O
ADIP CRC error flag monitor output
49
∗
PLCK
O
EFM PLL clock output during Play
50
EFM0
O
EFM signal output during Record; C1F (C1 error
flag) monitor output during Play.
51
∗
X700KO
O
Clock output; f = 705.6kHz; clock is not output
when RSTX = 0.
52
∗
EXPORT0 O
Microcomputer extension output port 0
53
∗
EXPORT1 O
Microcomputer extension output port 1
54
TESO1
O
Microcomputer extension output port 2 during
PLLLR changeover
55
TEST3
I/O
Microcomputer extension output port 3 during
PLLOSC changeover
56
TEST4
I/O
Microcomputer extension output port 4 during
EXTCLK changeover
57
CDDATA I/O
CD data input for high-speed dubbing; micro-
computer extension port 5 during changeover
58
CDLRCK I/O
CD LR clock input for high-speed dubbing;
microcomputer extension port 6 during
changeover
59
CDBCLK I/O
CD bit clock input for high-speed dubbing;
microcomputer extension port 7 during
changeover
60
VXI
I
PLL clock input for varying pitch
61
∗
VPO
O
PLL phase error input for varying pitch
62
VDD1
–
Digital power supply
63
DGND
–
Digital GND
64
XI
I
Oscillation circuit input; 33.8688MHz
65
XO
O
No.
Name
I/O
Description
66
DIN
I
Digital input signal
67
DOUT
O
Digital output signal
68
VDD3
–
Power supply for internal PLL
69
DGND
–
Digital GND
70
LRCK
O
Music data Lch/Rch changeover output
71
BCLK
O
Music data shift lock
72
DFCK
O
Clock for AD/DA converter digital filter; 256fs
73
ADDATA
I
Audio data input
74
DADATA
O
Audio data output
75
∗
FEMON
O
Focus error signal monitor output
76
∗
TOTMON
O
Total signal monitor output
77
∗
TEMON
O
Tracking error signal monitor output
78
∗
SBCK
I
DIN sub code readout clock; EIAJ CP-309 format
79
∗
SBO
O
DIN sub code serial data; EIAJ CP-309 format
80
∗
SBSY
O
DIN sub code block synchronization signal;
EIAJ CP-309 format
81
∗
SFSY
O
DIN sub code frame synchronization signal;
EIAJ CP-309 format
82
FOK
O
Focus OK detection signal; "0": Focus OK
83
SENSE
O
Servo status detection signal; "1": Auto Move/
Auto Jump/Auto Focus lead-in in progress
84
COUT
O
Track cross signal output
85
MCCK
O
Clock output for microcomputer; clock is output
even when RSTX = 0.
86
DINTX
O
Interrupt Request output signal for system
computer interface
87
VDD1
–
Digital power supply
88
DGND
–
Digital GND
89
RSTX
I
Tip reset input; reset with L (NOTE)
90
SYD0
I/O
System computer interface data bus terminal;
(LSB)
91
SYD1
|
|
I/O
System computer interface data bus terminal
96
SYD6
97
SYD7
I/O
System computer interface data bus terminal;
(MSB)
98
SYWRX
I
System computer interface register write pulse
input
99
SYRDX
I
System computer interface register read pulse
input
100
SYRS
I
System computer interface register select input
Terminals denoted with an asterisk (*) are (Open) terminals that are
not externally connected.
NOTE) Set RSTX to "L" when the power is being turned ON or after
it has been turned ON.
