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IDT77V1254L25 Datasheet, PDF (25/47 Pages) Integrated Device Technology – Quad Port PHY (Physical Layer) for 25.6 and 51.2 ATM Networks | |||
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IDT77V1254L25
3B5&/. LQ
3B5)50 RXW
3B5' RXW
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1LEEOH
&HOO
1LEEOH
&HOO
1LEEOH
&HOO
1LEEOH
&HOO
1LEEOH
&HOO
1LEEOH
Figure 25 DPI Receive Handshake - ATM Layer Device Suspends Transfer
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&HOO
1LEEOH
. GUZ
3B5&/. LQ
3B5)50 RXW
3B5' RXW
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1LEEOH
&HOO
1LEEOH
;
;
;
;
&HOO
1LEEOH
Figure 26 DPI Receive Handshake - Neither Device Ready
3B7&/. RXW
3B7)50 LQ
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1LEEOH
&HOO
1LEEOH
. GUZ
3B7' LQ
;
3B7&/. RXW
;
&HOO
&HOO
1LEEOH
1LEEOH
&HOO
&HOO
;
;
1LEEOH
1LEEOH
Figure 27 DPI Transmit Handshake - One Cell for Transmission
3B7)50 LQ
3B7' LQ
3B7&/. RXW
;
;
&HOO
1LEEOH
&HOO
1LEEOH
&HOO
&HOO
1LEEOH
&HOO
1LEEOH
&HOO
1LEEOH
&HOO
1LEEOH
Figure 28 DPI Transmit Handshake - Back-to-Back Cells for Transmission
3B7)50 LQ
3B7' LQ
&HOO
1LEEOH
&HOO
1LEEOH
&HOO
1LEEOH
&HOO
1LEEOH
&HOO
1LEEOH
&HOO
1LEEOH
Figure 29 DPI Transmit Handshake - 77V1254L25 Transmit FIFO Full
&HOO
1LEEOH
25 of 47
September 21, 2001
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