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DP83955AV Datasheet(PDF) 21 Page - National Semiconductor (TI) |
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DP83955AV Datasheet(HTML) 21 Page - National Semiconductor (TI) |
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21 / 54 page  50 Functional Description (Continued) ACKI Function Input signal to the PSM arbitration chain This chain is employed to identify PORT N and PORT M Note A LERIC which contains PORT N or PORT M may be identified by its ACKO signal being low when its ACKI input is high Conditions Not Applicable required for a LERIC to drive this signal LERIC This is dependent upon the method used to cascade LERICs described in Receiving the Section 53 Signal ACKO Function Output signal from the PSM arbitration chain Conditions This is dependent upon the method used to cascade LERICs described in required for a Section 53 LERIC to drive this signal LERIC Not Applicable Receiving the Signal ACTN Function This signal denotes there is activity on PORT N or PORT M Conditions A LERIC must contain PORT N required for a or PORT M LERIC to drive Note Although this signal normally has only one source asserting the signal active this signal it is used in a wired-OR configuration LERIC The signal is monitored by all LERICs in the repeater system Receiving the Signal ANYXN Function This signal denotes that a repeater port that is not Port N or Port M is experiencing a collision Conditions Any LERIC which satisifies the above condition required for a Note This bus line is used in a wired-OR LERIC to drive configuration this signal LERIC The signal is monitored by all LERICs in the repeater system Receiving the Signal COLN Function Denotes PORT N or PORT M is experiencing a collision Conditions A LERIC must contain PORT N required for a or PORT M LERIC to drive this signal LERIC The Signal is monitored by all other LERICs in the repeater system Receiving the Signal IRE Function This signal acts as an activity framing signal for the IRC and IRD signals Conditions A LERIC must contain PORT N required for a LERIC to drive this signal LERIC The Signal is monitored by all other LERICs in the repeater system Receiving the Signal IRD Function Decoded serial data in NRZ format received from the network segment attached to PORT N Conditions A LERIC must contain PORT N required for a LERIC to drive this signal LERIC The signal is monitored by all other LERICs in the repeater system Receiving the Signal IRC Function Clock signal associated with IRD and IRE Conditions A LERIC must contain PORT N required for a LERIC to drive this signal LERIC The signal is monitored by all other LERICs in the repeater system Receiving the Signal 21 |
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