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Pin No.
Symbol | I/O
Description
42
DB5
/O
SRAM data I/OPort 5
43
DB 4
1/0
SRAM data I/OPort 4
44
DB 3
/O
SRAM data I/OPort 3
45
DB 2
/O
SRAM data |/OPort 2
46
DB 1
VO
SRAM data |/OPort 1
47
C1F1
/O
Monitoring output for C1 error correction (RA 1)
48
C1F2
1/0
Monitoring output for C1 error correction (RA 2)
49
C2F1
1/0
Monitoring output for C2 error correction (RA 3)
50
C2F2
1/0
Monitoring output for C2 error correction (RA 4)
51
C2FL
VO
C2 decoder flag
(High : When the processing C2 code is impossible correction state) (RA5)
52
/PBCK
/O
Output of VCO/2
(Normal speed = 4.3218MHz, Double speed = 8.6436MHZ) (RA
53
DVss2
Digital Ground 2
54
FSDW
1/0
Unprotected frame sync (RA7)
55
ULKFS
1/0
Frame sync protection state (RA8)
56
/JIT
VO
Display of either RAM overflow or underflow for + 4 frame jitter margin
57
C4M
1/0
Only monitoring signal (Normal playback : 4.2336MHz) (RA10)
58
C16M
/O
16.9344MHz signal output (RA11)
59
/WE
/O
Terminal for test
60
Ics
/O
Terminal for test
61
SEL 1
|
Mode Selection Terminal 1 (H : 33.8688MHz, L : 16.9344MHz)
62
SEL 2
|
Mode Selection Terminal 2 (H : APLL : DPLL)
63
SEL 3
|
Mode Selection Terminal 3 (H : CDROM L : CDP)
64
SEL 4
|
Mode Selection Terminal 4 (L : Internal SRAM)
65
TEST
|
Test Terminal (L = Normal operating state)
66
EFMI
|
EFM Signal input
67
APDO
O
Charge Pump output for analog PLL
68
ASTAT
oO
The internal status output
69
TRCNT
|
Tracking counter input signal
70
LOCK
O
Output signal of LKFS Condition sampled PBFR/16
(If LKFS is "H", Lock is "H".
(If the LKFS is sampled "L" at least 8 times by PBFR/16, Lock is "L")
71
PBFR
O
Write frame clock (Lock : 7.35KHz)
72
SMEF
O
LPF time constant control of the spindle servo error signal
73
SMON
O
ON/OFF control signal for spindle servo
74
DVpb2
Digital Vcc 2
75
SMPD
O
Spindle Motor drive
Phase control in the CLP modes
76
SMSD
ie)
Spindle Motor drive (Velocity control in the CLV-P mode)
77
VCoo1
O
Vco output signal (When the state is lock by means of PBFR, it is 8.643MHz)
78
Vcon
|
VCO input signal
79
DSPEED
|
Double speed mode control (H : Normal Speed, L : Double Speed)
80
APDO02
ie)
Analog PLLCharge Pump output for Double Speed mode
- 25 -
RCD-750
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