psf2115 ETC-unknow, psf2115 Datasheet - Page 168

• Manufacturer Part Number: psf2115
• Description: Isdn Adapter Circuit Ipac
• Manufacturer: ETC-unknow

Table 24 Interrupts from D-Channel HDLC Controller
Mnemonic Register Meaning
Layer-2 Receive
RPF
RME
RFO
PCE
Layer-2 Transmit
XPR
Semiconductor Group
ISTAD
ISTAD
EXIRD
EXIRD
ISTAD
Receive Pool Full. Request to
read received octets of an
uncompleted HDLC frame from
RFIFOD.
Receive Message End.
Request to read received
octets of a complete HDLC
frame (or the last part of a
frame) from RFIFOD.
Receive Frame Overflow. A
complete frame has been lost
because storage space in
RFIFOD was not available.
Protocol Error. S or I frame with
incorrect N(R) or S frame with I
field received (in auto mode
only).
Transmit Pool Ready. Further
octets of an HDLC frame can
be written to XFIFOD.
If XIF&XME was issued (auto
mode), indicates that the
message was successfully
acknowledged with S frame.
168
Reaction
Read 32 octets from RFIFOD
and acknowledge with RMC.
Read RFIFOD (number of
octets given by RBCL4-0) and
status information and
acknowledge with RMC.
Error report for statistical
purposes. Possible cause:
deficiency in software.
Link re-establishment.
Indication to layer 3.
Write data bytes in the XFIFOD
if the frame currently being
transmitted is not finished or a
new frame is to be transmitted,
and issue an XIF, XIF&XME,
XTF or XTF&XME command.
Operational Description
PSB 2115
PSF 2115
11.97