Zilog Z16C35 - Manual (Page 277)

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
Rx
Data
FIFO
Special Condition
Interrupt
Data Data Data*
Data*
Data
Rx
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 Interr
Special Conditi
CRC err
Receive Char
Available In
Specia
Conditi
Interru
Data
FIFO
Locke
Erro
Rese
Data
FIFO
Unloc
SDLC FIFO Ena
Overrr
Error
Pari
Erro
End o
Frame "Reset Hig
IUS" to R
EOF Inter
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UM011002-0808