LSI53CF92A-64QFP LSI, LSI53CF92A-64QFP Datasheet - Page 99

• Manufacturer Part Number: LSI53CF92A-64QFP
• Manufacturer: LSI

Specifications of LSI53CF92A-64QFP

• Lead Free Status / RoHS Status: Supplier Unconfirmed

5.3.2 Select without ATN Sequence
5.3.3 Select with ATN Sequence
5.3.4 Select with ATN and Stop Sequence
This command causes the FSC initiator to arbitrate for the bus, enter the
Selection phase when it wins, and send the Command Descriptor Block
(CDB). The 6-, 10-, or 12-byte CDB must have either been placed in the
FIFO previously by the microprocessor, or must be transferred by DMA,
which involves setting the transfer count to 6, 10, or 12 and programming
the external DMA controller. In either case, the
Destination Bus ID
This command terminates early if a reselection time-out occurs, the
target does not assert Command phase or the target removes Command
phase too early. If it terminates normally, a Function Complete and
Bus Service interrupt is generated.
This command causes the FSC initiator to arbitrate for the bus, select a
device with ATN/ true, then send one message phase byte followed by 6,
10, or 12 Command phase bytes. The message and command bytes must
have either been placed in the FIFO by the microprocessor or must be
transferred by DMA, which involves setting the transfer count to 7, 11, or
13 and programming the external DMA controller. In either case, the
Time-Out
programmed. This command terminates early if a select time-out occurs,
the target does not assert Message Out phase followed by Command
phase, or the target removes Command phase early. If it completes
normally, a Function Complete and Bus Service interrupt are generated.
This command should be used in place of Select with ATN when multiple
message phase bytes are to be sent (for example, a synchronous
negotiation message). The command selects a target with ATN/
asserted, sends one message phase byte that had previously been
stored in the FIFO, generates a Bus Service interrupt and a
Function Complete interrupt, and stops. After the interrupt, the FIFO may
be filled with other message bytes. A Transfer Information command then
transfers bytes with ATN/ true until the FIFO empties. If a DMA Transfer
Information command is used, ATN/ remains true until the transfer
counter decrements to zero.
Disconnected State Command Group
Copyright © 1995–2002 by LSI Logic Corporation. All rights reserved.
and
Destination Bus ID
registers must have been programmed previously.
registers must have previously been
Time-Out
and
5-7