Cirrus-logic CS4955 Manual do Utilizador descarregar pdf (Página 10)

CS4954 CS4955

10 DS278F6

TIMING CHARACTERISTICS(Continued)

Parallel Host Port Timing (Figure 27, 28, 29)

Symbol Min Typ Max Units

Read Cycle Time Trd 60 - - ns

Read Pulse Width Trpw 30 - - ns

Address Setup Time Tas 3 - - ns

Read Address Hold Time Trah 10 - - ns

Read Data Access Time Trda - - 40 ns

Read Data Hold Time Trdh 10 - 50 ns

Write Recovery Time Twr 60 - - ns

Write Pulse Width Twpw 40 - - ns

Write Data Setup Time Twds 8 - - ns

Write Data Hold Time Twdh 3 - - ns

Write-Read/Read-Write Recovery Time Trec 50 - - ns

Address from Write Hold Time Twac 0 - - ns

Reset Timing (Figure 3)

Reset Pulse Width Tres 100 ns

RESET*

res

Figure 3. Reset Timing

1 2 ... 5 6 7 8 9 10 11 12 13 14 15 ... 59 60

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Cirrus-logic CS4955 Manual do Utilizador Página 10