LSI53C875 LSI Logic, LSI53C875 Datasheet - Page 96
LSI53C875
Manufacturer Part Number
LSI53C875
Description
PCI to Ultra SCSI I/O Processor
Manufacturer
LSI Logic
Datasheet
1.LSI53C875.pdf
(314 pages)
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Figure 4.3
BYTEPAR2
BYTEPAR1
BYTEPAR0
4-4
DEVSEL/
FRAME/
C_BE3/
C_BE2/
C_BE1/
C_BE0/
PERR/
IDSEL
TRDY/
STOP/
AD23
AD22
AD21
AD20
AD19
AD18
AD17
AD16
IRDY/
AD15
AD14
AD13
AD12
AD11
AD10
V
V
V
PAR
AD9
AD8
AD7
V
V
V
V
V
V
V
V
DD-I
DD-I
DD-I
NC
NC
NC
NC
NC
NC
NC
NC
NC
SS
SS
SS
SS
SS
SS
SS
SS
Note: The decoupling capacitor arrangement shown in Figures 4.1 and 4.2 is recom-
17
1
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52
mended to maximize the benefits of the internal split ground system. Capacitor val-
ues between 0.01 and 0.1 F should provide adequate noise isolation. Because of
the number of high current drivers on the LSI53C875, a multilayer PC board with
power and ground planes is required.
LSI53C875N Pin Diagram
Signal Descriptions
PCI to SCSI I/O Processor
Quad Flat Pack
LSI53C875N
208-Pin
156
156
155
155
154
154
153
153
152
152
151
151
150
150
149
149
148
148
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119
118
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116
115
114
113
112
111
110
109
108
107
106
105
NC
NC
NC
NC
NC
NC
SDIR7
SDIRP0
V
SD12/
SD13
SD14/
V
SD15/
SDP1/
SD0/
SD1/
V
SD2/
SD3/
SD4/
SD5/
V
SD6/
SD7/
SDP0/
SATN/
V
SBSY/
SACK/
SRST/
SMSG/
SSEL/
V
SC_D/
SREQ/
SI_0/
SD8/
V
SD9/
SD10/
SD11/
V
SDIR8
SDIR9
SDIR10
NC
NC
NC
NC
NC
NC
DD
DD
SS-S
SS-S
SS-S
SS-S
SS-S
SS-S
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