PEF2091 Siemens Semiconductor Group, PEF2091 Datasheet - Page 209
PEF2091
Manufacturer Part Number
PEF2091
Description
ICs for Communications(ISDN Echocancellation Circuit)
Manufacturer
Siemens Semiconductor Group
Datasheet
1.PEF2091.pdf
(298 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PEF2091
Manufacturer:
Infineon
Quantity:
15
Company:
Part Number:
PEF2091
Manufacturer:
SIEMENS
Quantity:
5 510
Company:
Part Number:
PEF2091
Manufacturer:
SMC
Quantity:
5 510
Company:
Part Number:
PEF2091-N
Manufacturer:
INFINEON
Quantity:
2 100
Company:
Part Number:
PEF2091-NV3.3
Manufacturer:
DIODES
Quantity:
1 700
Part Number:
PEF2091N-V3.3
Manufacturer:
SIEMENS/西门子
Quantity:
20 000
- Current page: 209 of 298
- Download datasheet (3Mb)
5.1
The cause of an interrupt is determined by reading the Interrupt Status Register (ISTA).
In this register, 7 interrupt sources can be directly read. Interrupt bits are cleared by
reading the corresponding registers. ISTA:D is cleared after DRI and DRU have been
read. ISTA:B1 is cleared after RB1I and RB1U have been read. ISTA:B2 is cleared after
RB2I and RB2U have been read etc. ISTA:CICI is cleared after CIRI is read, ISTA:CICU
is cleared after CIRU is read. ISTA:SF indicates a superframe marker received from the
transceiver core. It is cleared when the ISTA register has been read. Pin INT is set to "0"
if one bit of ISTA changes from "0" to "1", except for the bit masked in the MASK register.
The MASK register allows to prevent an interrupt to influence the INT pin. Setting the bits
of MASK that correspond to the bits of ISTA to "1" masks the bits, i.e. the bits are still set
in ISTA, but they do not contribute to the input of the NOR-function on the interrupt bits
which sets the INT pin. The interrupt structure is illustrated in Figure 90:
Figure 90 Interrupt Structure
5.1.1
The Monitor Data Receive (MDR) and the Monitor End of Reception (MER) interrupt
status bits have two enable bits, Monitor Receive Interrupt Enable (MRE) and MR-bit
Control (MRC). The Monitor channel Data Acknowledged (MDA) and Monitor channel
Data Abort (MAB) interrupt status bits have a common enable bit Monitor Interrupt
Enable (MXE).
MRE prevents the occurrence of the MDR status, including when the first byte of a
packet is received. When MRE is active ("1") but MRC is inactive, the MDR interrupt
status is generated only for the first byte of a receive packet. When both MRE and MRC
are active, MDR is generated and all received Monitor bytes - marked by a low edge in
Semiconductor Group
Interrupt Structure
Monitor-Channel Interrupt Logic
D
CICI
CICU
SF
MDR
B1
B2
MDA
MASK
INT
D
CICI
CICU
SF
MDR
B1
B2
MDA
ISTA
209
MOSR
MDR
MER
MDA
MAB
MAC
Register Description
MOCR
MRE
MRC
MXE
MXC
ITD08114
Data Sheet 01.99
PEB 2091
PEF 2091
Related parts for PEF2091
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Intel 80C32 - Siemens SAB-C501, Nearest Equivalent Replacement
Manufacturer:
Siemens Semiconductor Group
Part Number:
Description:
IGBT MODULE
Manufacturer:
Siemens Semiconductor Group
Datasheet:
Part Number:
Description:
SIMOPAC Module (Power module Single switch N channel Enhancement mode)
Manufacturer:
Siemens Semiconductor Group
Datasheet:
Part Number:
Description:
(BSMxxx) TRANSISTOR
Manufacturer:
Siemens Semiconductor Group
Datasheet:
Part Number:
Description:
SIMOPAC Module (Power module Single switch N channel Enhancement mode)
Manufacturer:
Siemens Semiconductor Group
Datasheet:
Part Number:
Description:
main ratings
Manufacturer:
Siemens Semiconductor Group
Datasheet:
Part Number:
Description:
Manufacturer:
Siemens Semiconductor Group
Datasheet:
Part Number:
Description:
Manufacturer:
Siemens Semiconductor Group
Datasheet:
Part Number:
Description:
Manufacturer:
Siemens Semiconductor Group
Datasheet:
Part Number:
Description:
ICs for Consumer Electronics
Manufacturer:
Siemens Semiconductor Group
Datasheet:
Part Number:
Description:
Video and Sound IF with V & S SCART
Manufacturer:
Siemens Semiconductor Group
Datasheet:
Part Number:
Description:
Manufacturer:
Siemens Semiconductor Group
Datasheet:
Part Number:
Description:
Multistandard Sound IF
Manufacturer:
Siemens Semiconductor Group
Datasheet:
Part Number:
Description:
MULTISTANDARD AM FM SOUND IF IC
Manufacturer:
Siemens Semiconductor Group
Datasheet: