AM53C94JC datasheet(23/63 Pages) AMD

23 / 63 page

P R E L I M I N A R Y

AMD

Am53C94/Am53C96

Initiator Select without ATN Steps

Internal State

Interrupt Status

Explanation

Bits 2:0 (Hex)

Bits 7:0 (Hex)

Arbitration steps completed or disconnected or selection time–out

Selection with ATN steps fully executed

Sequence halted during command transfer due to premature phase change

(target)

Arbitration and selection completed; sequence halted because target failed to

assert command phase

Initiator Select with ATN Steps

Internal State

Interrupt Status

Explanation

Bits 2:0 (Hex)

Bits 7:0 (Hex)

Selection with ATN steps fully executed

Sequence halted during command transfer due to premature phase change;

some CDB bytes may not have been sent; check FIFO flags

Message out completed; sent one message byte with ATN true, then released

ATN; sequence halted because target failed to assert command phase after

message byte was sent

Arbitration and selection completed; sequence halted because target did not

assert message out phase; ATN still driven by HPSC

Initiator Select with ATN3 Steps

Internal State

Interrupt Status

Explanation

Bits 2:0 (Hex)

Bits 7:0 (Hex)

Arbitration steps completed or disconnected or selection time–out

Selection with ATN3 steps fully executed

Sequence halted during command transfer due to premature phase change;

some CDB bytes may not have been sent; check FIFO flags

One, two, or three message bytes sent; sequence halted because target failed

to assert command phase after third message byte, or prematurely released

message out phase; ATN released only if third message byte was sent

Arbitration and selection completed; sequence halted because target failed to

assert message out phase; ATN still driven by HPSC

Initiator Select with ATN and Stop Steps

Internal State

Interrupt Status

Explanation

Bits 2:0 (Hex)

Bits 7:0 (Hex)

Arbitration steps completed or disconnected or selection time–out

Arbitration and selection completed; sequence halted because target failed to

assert message out phase; ATN still asserted by HPSC

Message out completed; one message byte sent; ATN on

AM53C94JC Datasheet(PDF) 23 Page - Advanced Micro Devices

AM53C94JC Datasheet(HTML) 23 Page - Advanced Micro Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63

Datasheet Download

Link URL