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Avago Technologies LSI8751D User Manual

Page 109

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4-17

SDIRP[1:0]
(SDIPR1 is not
available on
LSI53C875J,
LSI53C875JB)

130, 119; NA,
119/171,
149/NA, D10

O

Driver direction control for SCSI parity signals. In the
LSI53C875J and LSI53C875JB, this pin is replaced by
the TCK JTAG signal. If the device is used in a wide
differential system, use the SDIRP0 pin to control the
direction of the differential transceiver for both the SP0
and SP1 signals. The SDIRP0 signal is capable of
driving both direction inputs from a transceiver.

SELDIR

76/95/N11

O

Driver Enable Control for SCSI SEL/ signal.

RSTDIR

77/96/L10

O

Driver Enable Control for SCSI RST/ signal.

BSYDIR

78/97/M11

O

Driver Enable Control for SCSI BSY/ signal.

IGS

75/94/K9

O

Direction Control for initiator driver group.

TGS

73/92/N10

O

Direction Control for target driver group.

Table 4.9

SCSI SIgnals (Cont.)

Name

Pin No.

LSI53C875,

LSI53C875J,

LSI53C875N,

LSI53C875JB

Type

Description

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