Zilog Z16C35 Manual do Utilizador descarregar pdf (Página 277)

100

101

Application Note

Boost Your System Performance Using The Zilog ESCC

™

13-10

AUTOMATIC OPENING FLAG TRANSMISSION

(Continued)

Figure 10. SDLC Status FIFO Anti-Lock

Figure 11. Receive Interrupt Mechanism 1

Data

EOF

Data

Data EOF Data

Packet N

Packet N+1

Receive Character

Available Interrupt

Data

FIFO

Special Condition

Interrupt

Data DataData*

Data*

Data

FIFO

1. Enable Receive Interrupt on Special Conditions only.

2. Receive Data FIFO not locked.

3. Receive Character Available Interrupt generated

even if it has not been enabled to indicate detection of EOF.

1. Enable Receive Interrupt on Special Conditions only.

2. Receive Data FIFO locked.

3. Special Condition Interrupt generated.

End of Frame Flag

Data with Special Condition

Receive Inter

Special Condit

CRC er

Receive Char

Available In

Speci

Condit

Interr

Dat

FIF

Lock

Err

Rese

Dat

FIFO

Unlo

SDLC FIFO En

Overr

Erro

Par

Err

End

Fram

"Reset Hi

IUS" to

EOF Inter

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Zilog Z16C35 Manual do Utilizador Página 277

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