psb21381 Infineon Technologies Corporation, psb21381 Datasheet - Page 111
psb21381
Manufacturer Part Number
psb21381
Description
Siemens Codec With S/t Transceiver
Manufacturer
Infineon Technologies Corporation
Datasheet
1.PSB21381.pdf
(270 pages)
- Current page: 111 of 270
- Download datasheet (4Mb)
Figure 61
RFIFO Operation
Data Sheet
EXMR.RFBS=11
so after the first 4
bytes of a new frame
have been stored in the
fifo an receive pool full
interrupt ISTAH.RPF
is set.
The HDLC
receiver has
written further
data into the FIFO.
When a frame
is complete, a
status byte (RSTA)
is appended.
Meanwhile two
more short frames
have been
received.
FIFO.
HDLC
Receiver
Receiver
HDLC
When the RFACC detects 16 valid bytes,
it sets an RPF interrupt. The µP reads the 16 bytes
and acknowledges the transfer by setting CMDR.RMC.
This causes the space occupied by the 16 bytes being
released.
RAM
RAM
RSTA
RSTA
RSTA
µP
µP
32
16
32
16
8
4
8
RFIFO ACCESS
RFIFO ACCESS
CONTROLLER
CONTROLLER
RFBS=01
RFBS=11
RFACC
RFACC
101
The µP has read
the 4 bytes, sets
RFBS=01 (16 bytes)
and completes the
block transfer by
an CMDR.RMC command.
Following CMDR.RMC
the 4 bytes of the
last block are
deleted.
RMC
EXMR.RFBS=01
RMC
Receiver
HDLC
Receiver
HDLC
After the RMC acknowledgement the
RFACC detects an RSTA byte, i.e. end of
the frame, therefore it asserts
an RME interupt and increments the
RBC counter by 2.
RAM
RAM
RSTA
RSTA
RSTA
µP
32
16
32
16
HDLC Controller
8
4
8
RFIFO ACCESS
RFIFO ACCESS
PSB 21381/2
PSB 21383/4
CONTROLLER
CONTROLLER
RFBS=01
RFBS=01
RFACC
RFACC
2001-03-12
Related parts for psb21381
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Psb Series Extended Positive Switching Regulators Rugged
Manufacturer:
Power-One
Datasheet:
Part Number:
Description:
Psb Series Extended Positive Switching Regulator Industrial
Manufacturer:
Power-One
Datasheet:
Part Number:
Description:
Psb Series Extended Positive Switching Regulators Benign
Manufacturer:
Power-One
Datasheet:
Part Number:
Description:
Antenna Switch Silicon Pin Diode
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Silicon Switching Diodes
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Single Igbt Driver Ic
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Igbt Modules
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Igbt Modules
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Igbt Modules
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
5 Volt Standard Regulator
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Active Biased Transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
N-channel Small Signal Mosfet 20v?800v
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Sipmos Small-signal Transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Complementary Mosfets 60v Small-signal-transistor
Manufacturer:
Infineon Technologies Corporation
Datasheet:
Part Number:
Description:
Complementary Mosfets 60v
Manufacturer:
Infineon Technologies Corporation
Datasheet: