LSI53C040-160QFP LSI, LSI53C040-160QFP Datasheet - Page 25

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

Specifications of LSI53C040-160QFP

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

Figure 2.3
(0xFC02 Bit 0)
Reset ARB
Yes
1
A
Initiating Arbitration and Selection/Reselection
Read 0xFC00 to See
If a Higher Priority ID
Output Data Register
(0xFC02 Bit 7)***
Arbitration Delay
Arb. In Prog. Bit
(0xFC01 Bit 6)
(0xFC01 Bit 5)
(0xFC02 Bit 0)
(Reg. 0xFC00)
Write ID Bit to
Lost Arb. Bit
Set AS_LVD
Wait 2.2 s
Is Present
Priority ID
Set ARB
Present
Higher
Check
Check
SCSI Core Operation
B
?
1
0
No
0
(0xFC01 Bit 2)
Reset SEL
A
1
Set Target Mode Bit
(Bus Clear + Settle)
Set Assert SEL/ Bit
Set Assert I_O/ Bit
(0xFC01 Bits 3, 0)
(0xFC03 Bit 1)***
Write Target and
Assert BSY/ and
Wait 1.2 s Min.
Initiator’s ID Bits
Assert Data Bus
(0xFC02 Bit 6)*
(0xFC03 Bit 0)*
to Output Reg.
(Reg. 0xFC00)
Reset ARB Bit
(0xFC02 Bit 0)
(0xFC01 Bit 5)
(0xFC01 Bit 2)
Lost Arb. Bit
Set TE
Check
C
B
0
Information Transfer Phases
*
**
*** LVD operation only
(0xFC01 Bits 2, 0)
Reset Assert BSY/
Bit (0xFC01 Bit 3)
Reset the Select
Assert Data Bus
(0xFC02 Bit 7)***
Enable Register
Reset SEL/ and
Set Assert BSY/
(Reg. 0xFC04)
Asserted within
(0xFC01 Bit 3)*
Reselection Only
Poll Interrupt
Request Active Bit or
wait for interrupt
Reset AS_LVD
Reselection
Complete?
Selection/
250 ms
BSY/
C
**
?
Yes
Yes
Selection
Time-out
No
No
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