PEB20571 INFINEON [Infineon Technologies AG], PEB20571 Datasheet - Page 177

• Manufacturer Part Number: PEB20571
• Description: ICs for Communications
• Manufacturer: INFINEON [Infineon Technologies AG]

ABORT
FULL
EMPTY
FLAG
Preliminary Data Sheet
1 =
Abort Indication
0 =
1 =
Receive Buffer Full Indication
0 =
1 =
Transmit Buffer Empty
0 =
1 =
Status Vector Flag
0 =
1 =
HDLCU has detected an end of message flag in the receive
direction. The DSP must read the octet in the Receive Output
Buffer before the next message start flag is detected
Normal operation
The DSP has detected an incoming abort message (7
consecutive ’1s’). The STOP flag is also set to 1. This means
that the DSP should ignore the current message being
transmitted over the channel in question and report to the
external microcontoller
Normal operation
Indicates that the Receive Output Buffer has a newly processed
octet in it. The DSP must read this octet before starting the next
processing session, otherwise it might be lost.
The transmit buffer is full.
The transmit buffer is empty. The current time slot in the
Transmit Input Buffer has been fully processed by the HDLCU.
The Transmit Input buffer is ready to receive the next octet of
the message by the DSP.
Note: The DSP must put a new octet into the buffer before
Ignore the status vector and do not read or write on this channel
Read the channel’s status vector and process accordingly
Note: FLAG will go to ‘1’ as soon as EMPTY or FULL go to ‘1’.
starting the next processing session, otherwise the same
octet will be read again.
6-37
Register Description
DELIC
2003-08