參數(shù)資料
型號: SAA7381
廠商: NXP SEMICONDUCTORS
元件分類: 消費家電
英文描述: ATAPI CD-R block decoder
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP144
文件頁數(shù): 8/108頁
文件大小: 380K
代理商: SAA7381
1997 Aug 12
8
Philips Semiconductors
Objective specification
ATAPI CD-R block decoder
SAA7381
n.c.
71 to 74
not connected
DD11
75
I/O
AL/T
host
data bus; pin order of ATAPI interface matches
the pinning of the 40-way IDE connector (slew
rate limiting by control of drive capability into
capacitive load of ATA bus)
DD3
76
I/O
AL/T
DD12
77
I/O
AL/T
DD2
78
I/O
AL/T
DD13
79
I/O
AL/T
DD1
80
I/O
AL/T
DD14
81
I/O
AL/T
DD0
82
I/O
AL/T
DD15
83
I/O
AL/T
DMARQ/
DMACK
DGND7
84
O
AL
host
DMA request/SCSI DMA acknowledge output
(active LOW)
digital ground 7
85
V
DDD(pad2)
DIOW
86
digital peripheral supply voltage 2
87
I
L/T
host
write cycle write enable/control register write
input (active LOW)
read cycle read enable/control register read
input (active LOW)
device is ready to transfer data output
(active LOW)
DMA acknowledge (active LOW)/SCSI DMA
request input
host interrupt request (NB 3-state output)
DIOR
88
I
L/T
host
IORDY
89
O
AH
host
DMACK/
DMARQ
INTRQ
90
I
T
host
91
A
host
DGND8
92
digital ground 8
V
DDD(pad3)
IOCS16
93
digital peripheral supply voltage 3
94
O
AH
host
I/O port is 16-bit output (active LOW)
DA1/DBWR
95
I/O
L/T
host
address wire 1/DMA from generic interface is
output from the SAA7381 (active LOW)
ATAPI passed diagnostics input/output
(active LOW)
address wire 0 input/output
PDIAG
96
I/O
AL/T
host
DA0
97
I/O
L/T
host
DA2/DBRD
98
I/O
L/T
host
address wire 2/DMA from generic interface is
input to the SAA7381 (active LOW)
chip select 1FX/generic interface chip select
(active LOW)
chip select 3FX input/output (active LOW)
CS0/
SCSICS
CS1
99
I/O
L/T
host
100
I/O
L/T
host
DASP
101
I/O
AH/T
host
device active slave present input/output (active
LOW)
sub-CPU interrupt output from the SAA7381
drive block and UART
INT2
102
O
L
sub-CPU
SYMBOL
PIN
TYPE
DRIVE/
THRESHOLD
GROUPING
DESCRIPTION
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