FUJITSU MB86617A - Manual (Page 128)

LSI S pecification MB86617A
Rev.1.0 Fujitsu VLSI
123
< < Flow chart for received data before storing in Asynchronous receive FIFO
Figure 11.4.1 Flow example for received data before storing in Asynchronous receive FIFO
Receive packet to self-node.
Report Header CRC Error(INT14)
interrupt and duscard received packet.
Store Asynchronous packet into
Asynchronous receive buffer.
Check Header CRC.
Transmit Acknowledge packet
Report Asynchronous packet receive
(INT9) interrupt(assert XINT).
NG
‘1’
recv busy bit
Transmit “Ack_busy_X” and
discard received packet.
recv busy bit=1
Report Asynchronous Receive FIFO full
(INT16) interrupt(assert XINT).
Read Asynchronous Receive FIFO
full(INT16)
interrupt.
Read Asynchronous packet
received(INT9)
interrupt.
OK
Read Header CRC Error (INT14)
interrupt.
Receive buffer=full
‘0’
Packet receiving process
completed
Packet receiving process
completed
Packet receiving process
completed
Yes
No