cx28560 Mindspeed Technologies, cx28560 Datasheet - Page 164

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

Basic Operations
7.2.7.2
7.2.7.3
7.2.7.4
7.2.7.5
7-6
Effects:
Change to Abort Code (CHABT)
Reason:
Effects:
CHABT Interrupt (if IDLEIEN = 1 in
Configuration register).
Change to Idle Code (CHIC)
Reason:
Effects:
NOTE:
Frame Recovery (FREC) or Generic Serial PORT (SPORT) Interrupt
Reason:
Effects:
• If there were no errors, RxEOM interrupt (if EOMIEN = 1 in
• RBUFFC sets EOM = 1 in Receive Fragment Header.
• RBUFFC and RSLP continue normal processing.
• RSLP detected received data changed from flag (7Eh) octets to abort code
• RSLP and RBUFFC continue normal processing.
• RSLP detects received data changed to flag (7Eh) octets. The CX28560
• CHIC interrupt (if IDLEIEN = 1 in
• RSLP and RBUFFC continue normal processing.
• RSIU detects the serial interface ROOF signal transition from an out-of-frame
• FREC/SPORT Interrupt (if OOFIEN = 1 in
• RSLP and RBUFFC continue normal processing.
Error conditions include: Overflow, COFA, OOF, Abort, Too Long,
Alignment and FCS error.
RBUFFC Channel Configuration register). If there were errors, RxEOM
interrupt (if ERRIEN = 1 in
Chapter
(zero followed by 15 consecutive 1s).
requires detection of three consecutive flags before a CHIC event is generated.
register).
After channel activation/reactivation, the first flags detected on the line
generate a CHIC interrupt.
(ROOF = 1) to an in-frame (ROOF = 0) condition. If the ROOF signal is
programmed for use as an out-of-frame indicator, this frame recovery event
(ROOF returning low) generates a FREC interrupt. If the ROOF signal is used
as a general-purpose interrupt input, this event generates a SPORT (Serial
PORT) interrupt.
Configuration register).
Mindspeed Technologies™
5.0, TBUFFC Configuration register).
Advance Information
Chapter
Chapter
Chapter
5.0, RBUFFC Configuration register and
5.0, RSLP Channel
Chapter
5.0, RSLP Channel Configuration
5.0, RSIU Port
Chapter
CX28560 Data Sheet
28560-DSH-001-B
5.0,