psb21391 Infineon Technologies Corporation, psb21391 Datasheet - Page 113

• Manufacturer Part Number: psb21391
• Description: Siemens Codec With Upn Transceiver
• Manufacturer: Infineon Technologies Corporation

3.6
The cause of an interrupt related to the HDLC controller is indicated by the HDLC bit in
the ISTA register. This bit points at the different interrupt sources of the HDLC controller
part in the ISTAH register. The individual interrupt sources of the HDLC controller during
reception and transmission of data are explained in chapter 3.2.1 or 3.3.1 respectively.
Figure 57
Interrupt Status Registers of the HDLC Controller
Each interrupt source in ISTAH register can be selectively masked by setting to “1” the
corresponding bit in MASKH.
Data Sheet
HDLC Controller Interrupts
TRAN
MASK
HDLC
WOV
MOS
CIC
TIN
INT
ST
TRAN
HDLC
ISTA
WOV
MOS
CIC
TIN
ST
103
MASKH
RME
XMR
RFO
XDU
XPR
RPF
ISTAH
RFO
RME
RPF
XPR
XMR
XDU
HDLC Controller
PSB 21391
PSB 21393
2001-03-07