SAA7385GP Philips Semiconductors, SAA7385GP Datasheet - Page 5
SAA7385GP
Manufacturer Part Number
SAA7385GP
Description
Error correction and host interface IC for CD-ROM SEQUOIA
Manufacturer
Philips Semiconductors
Datasheet
1.SAA7385GP.pdf
(64 pages)
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SAA7385GP
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Philips Semiconductors
5
6
All input, output and bidirectional signals are TTL level unless otherwise stated (Pull-Down = PD25 = 25 A;
Pull-Up = PU25 = 25 A, PU400 = 400 A; Slew = S2 = 2 mA, S4 = 4 mA;
CMOS slew = CMOS S2 = CMOS 2 = 2 mA; SCSI pad = SCSI = 48 mA).
1996 Jun 19
handbook, full pagewidth
DA2
DA3
DA4
V
DA5
DA6
DA7
DA8
DA9
V
SS1
DD1
Error correction and host interface IC for
CD-ROM (SEQUOIA)
SYMBOL
BLOCK DIAGRAM
PINNING
PROCESSOR
DECODER
SERVO
CD
PIN
10
1
2
3
4
5
6
7
8
9
I/O
O
O
O
O
O
O
O
O
data
subcode
C-flag
S2B serial interface
AND SUB-CODE
CONVERTER
data
SAA7385
DATA
UART
subcode
PAD
S4
S4
S4
S4
S4
S4
S4
S4
Fig.1 Block diagram (simplified).
CORRECTOR
80C32 MICROCONTROLLER
LAYERED
ERROR
BUFFER MANAGER
256K
DRAM address bus; bit DA2
DRAM address bus; bit DA3
DRAM address bus; bit DA4
ground 1
DRAM address bus; bit DA5
DRAM address bus; bit DA6
DRAM address bus; bit DA7
DRAM address bus; bit DA8
DRAM address bus; bit DA9
power supply 1
DRAM BUFFER
5
MICROCONTROLLER INTERFACE
64K
8 or 1M
8 ROM
8
MAPPER
BUFFER
DESCRIPTION
DEBUG UART
53CF94
SCSI
MGE388
Preliminary specification
SAA7385
interface
debug
UART
SCSI
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