SAB82525HV22XP Infineon Technologies, SAB82525HV22XP Datasheet - Page 65
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SAB82525HV22XP
Manufacturer Part Number
SAB82525HV22XP
Description
Manufacturer
Infineon Technologies
Datasheet
1.SAB82525HV22XP.pdf
(126 pages)
Specifications of SAB82525HV22XP
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (min)
4.75V
Operating Supply Voltage (max)
5.25V
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Surface Mount
Pin Count
44
Lead Free Status / RoHS Status
Compliant
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6
6.1 Fully Transparent Transmission and Reception
When programmed to the extended transparent mode via the MODE register (MDS1,
MDS0 = 11), each channel of the HSCX supports fully transparent data transmission and
reception without HDLC framing overhead, i.e. without
In order to enable fully transparent data transfer, RAC bit in MODE has to be reset and FF
has to be written to XAD1, XAD2 and RAH2.
Data transmission is always performed out of the transmit FIFO by directly shifting the contents
of the XFIFO via the serial transmit data pin (T D). Transmission is initiated by setting
CMDR : XTF (08
In receive direction, the character currently assembled via the receive data line (R D) is
available in the RAL1 register. Additionally, in extended transparent mode 1 (MODE: MDS1,
MDS0, ADM = 111), the received data is shifted into the RFIFO.
This feature can be profitably used e.g. for:
Character synchronization can be achieved either in
Using clock mode 1 or 5 multiples of 8 bits received per time-slot.
6.2 Cyclic Transmission (Fully Transparent)
If the extended transparent mode is selected, the HSCX supports the continuous transmission
of the transmit FIFO’s contents.
After having written 1 to 32 bytes to the XFIFO, the command
via the CMDR register (bit 7. . .0 = "00101010" = 2AH) forces the HSCX to repeatedly transmit
the data stored in the XFIFO via T D pin.
The cyclic transmission continues until a reset command (CMDR : XRES) is issued, after
which continuous ’1’-s are transmitted.
Note: In DMA-mode the command XREP, XTF has to be written to CMDR.
Semiconductor Group
user specific protocol variations
the application of character oriented protocols (e.g. BISYNC)
test purposes, line intentionally violation of HDLC protocol rules (e.g. wrong CRC)
clock mode 1, with an external receive strobe input to A CLK pin, or
clock mode 5, with a programmed time-slot and a frame synchronization signal input to
A CLK.
Special Functions
XREP.XTF.XME
FLAG insertion and deletion
CRC generation and checking
Bit-stuffing mechanism.
H
); end of transmission is indicated by EXIR : EXE (40
65
H
).
SAB 82525
SAB 82526
SAF 82525
SAF 82526
H
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