cx28560 Mindspeed Technologies, cx28560 Datasheet - Page 173

• Manufacturer Part Number: cx28560
• Description: Hdlc Controller
• Manufacturer: Mindspeed Technologies

CX28560 Data Sheet
7.3.3.2
7.3.3.3
7.3.4
7.3.4.1
28560-DSH-001-B
Transmit Errors
Frame Recovery (FREC)
Reason:
Effects:
Receive COFA Recovery (RCREC)
Reason:
Effects:
Transmit Errors are service-affecting and require a corrective action by the host to
resume normal processing.
Transmit Underrun (BUFF)
Same as HDLC mode.
Reasons:
Effects:
Channel-Level Recovery Actions:
• SIU detects the serial interface has transitioned from an out-of-frame to an in-
• FREC/SPORT Interrupt (if OOFIEN = 1 in
• RSLP and RBUFFC continue normal processing.
• SIU terminates the internal COFA condition due to a RSYNC/TSTB pulse
• RCREC Interrupt (if COFAIEN = 1 in
• RSLP and RBUFFC continue normal processing.
• Degradation of the host subsystem or application software.
• Host applied back-pressure on the Flow Conductor POS-PHY bus causing
• TxBUFF Interrupt (if BUFFIEN = 1 in
• Transmit channel enters deactivate state, wherein TSLP sends a repetitive all 1s
• Transmit channel reactivation is required.
frame condition. If the ROOF pin is used as an out-of-frame indication, a
FREC interrupt is generated. If the ROOF pin is used as a general purpose
interrupt input, a SPORT (Serial PORT) interrupt is generated.
Configuration register).
followed by at least the assigned number of time slots for this port without
another unexpected RSYNC/TSTB pulse.
register).
reports of buffer levels not to reach the host.
Configuration register).
sequence.
Mindspeed Technologies™
Advance Information
Chapter
Chapter
Chapter
5.0, RSIU Port Configuration
5.0, TSLP Channel
5.0, RSIU Port
Basic Operations
7
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