SAA7385GP Просмотр технического описания (PDF) - Philips Electronics

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SAA7385GP

Error correction and host interface IC for CD-ROM (SEQUOIA)

Philips Electronics 

Philips Semiconductors

Error correction and host interface IC for

CD-ROM (SEQUOIA)

Preliminary specification

SAA7385

SYMBOL PIN I/O

RXS2B

93

I

TXS2B

94

O

TRAYIN

95 I/O

TRAYOUT

96 I/O

SCSIRST

97

I

POR

98

I

VDD6

99

−

UC_PORT1.7 100 I/O

RAB_MUSB 101 I/O

NRST_SEQ 102 I/O

UC_PORT1.4 103 I/O

UC_PORT1.3 104 I/O

UC_PORT1.1 105 I/O

HOMESW

106 I/O

PLAY

107

I

UC_PORT1.6 108 I/O

VSS13

GPI1

109

−

110

I

GPI2

111

I

KILL

112

I

TXICE

113 O

RXICE

114

I

RXSUB

VDD7

OSCIN

115

I

116

−

117

I

VSS14

CLAB

118

−

119

I

VSS15

DAAB

120

−

121

I

WSAB

122

I

EFAB

123

I

CLK34

124 O

TEST

125

I

VSS16

DA0

126

−

127 O

DA1

128 O

PAD

Schmitt, PU25

4 mA

4 mA, PD25

4 mA, PD25

Schmitt

CMOS

−

CMOS 2, PU25

CMOS 2, PU25

CMOS 2, PU25

CMOS 2, PU25

CMOS 2, PU25

CMOS 2, PU25

2 mA, PU25

Schmitt

CMOS 2, PU25

−

Schmitt, PU25

Schmitt, PU25

Schmitt, PU25

4 mA

Schmitt, PU25

Schmitt, PU25

−

standard

−

Schmitt

−

Schmitt

Schmitt

Schmitt

2 mA

Schmitt, PD25

−

S4

S4

DESCRIPTION

S2B interface receive

S2B interface transmit

tray extend control; active LOW (general purpose signal)

tray retract control; active LOW (general purpose signal)

SCSI reset, active LOW; also causes a system reset

power-on reset; active LOW

power supply 6

drive speed select; microcontroller port 1.7

RD/WR, acknowledge; microcontroller port 1.2

reset to engine; microcontroller port 1.5

general purpose microcontroller I/O port; port 1.4

general purpose microcontroller I/O port; port 1.3

general purpose microcontroller I/O port; port 1.1

actuator sled home; active LOW; microcontroller port 1.0

laser on and focused status; active LOW; RDSW(4)

general purpose microcontroller I/O port; port 1.6

ground 13

general purpose input; microcontroller port 3.4

general purpose input; microcontroller port 3.5

shut off audio; active LOW

debug UART output; from 80C32 serial port

debug UART input; to 80C32 serial port

sub-code input

power supply 7

master input clock; 34 or 16 MHz

ground 14

clock

ground 15

data

word strobe

error flag

34 MHz output clock

test pin; must be ground

ground 16

DRAM address bus; bit DA0

DRAM address bus; bit DA1

1996 Jun 19

8

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