LSI53C040-160QFP LSI, LSI53C040-160QFP Datasheet - Page 44

• Manufacturer Part Number: LSI53C040-160QFP
• Manufacturer: LSI

Specifications of LSI53C040-160QFP

• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Supplier Unconfirmed

2-26
Figure 2.13 LSI53C040 SFF-8067 Interface Control State Diagram
Discovery
Functional Description
Signal Name
PESI/ (PARALLEL_ESI/) Drive
D[3:0]
ENCL_ACK/
DSK_RD/
DSK_WR/
*Items marked with an asterisk require action
by the firmware. All other activities are part of
standard SFF-8067 interface operation.
DSK_RD/ & DSK_WR/ Deasserted
Phase
RESET/ or PESI/ High
ENCL_ACK/
ENCL_ACK/
Deasserted
SEL[3:0] &
SEL[6:0] =
SEL[3:0] =
Asserted
PA[6:0]
PA[3:0]
8067
IDLE
PESI/ Asserted
(Low)
DSK_RD/ & DSK_WR/
Asserted
Asserted
LSI53C040 or
Drive
LSI53C040
Drive
Drive
RINT Bit = 1
ENCL_ACK/
ENCL_ACK/
ENCL_ACK/
TRANSFER
Deasserted
Deasserted
ENCL_ACK/
RDATA[7:4]
WDATA[7:4]
Asserted
(0xFC22,
Interrupt
Asserted
D[3:0] =
START
= D[3:0]
Bit 1)*
DSK_RD/ Deasserted
Write RDATA Register*
DSK_RD Asserted
DSK_WR/ Asserted
DSK_WR/ Deasserted
DSK_WR/ Asserted
DSK_RD/ Asserted
Read WDATA Register*
(0xFC22, Bit 0)*
ENCL_ACK/
ENCL_ACK/
WRF Bit = 1
Deasserted
RDATA[3:0]
WINT Bit = 1
ENCL_ACK/
ENCL_ACK/
WDATA[3:0]
Asserted
(0xFC22,
Asserted
Asserted
Interrupt
= D[3:0]
D[3:0]
Bit 1)
DSK_WR/ Deasserted
DSK_RD/ Deasserted
8067 Read
8067 Write