BT8375 CONEXANT [Conexant Systems, Inc], BT8375 Datasheet - Page 215
BT8375
Manufacturer Part Number
BT8375
Description
single chip transceivers for T1/E1 and Integrated Service Digital Network (ISDN) primary rate interfaces
Manufacturer
CONEXANT [Conexant Systems, Inc]
Datasheet
1.BT8375.pdf
(323 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
- Current page: 215 of 323
- Download datasheet (2Mb)
Bt8370/8375/8376
Fully Integrated T1/E1 Framer and Line Interface
RDL1_CNT[5:0]
WORD1: Message Data
RDL1[7:0]
RMSG1
RSTAT1
N8370DSE
0A9—RDL #1 Status (RDL1_STAT)
RDL1[7]
—
7
7
HDLC message. FCS error status is reported if FCS mode is enabled, and the checksum
calculated over the received HDLC message does not match the received 16-bit FCS.
Non-integer error status is reported if the receiver detects a closing FLAG character that yields
an HDLC message length that is not an integer number of 8-bit octets.
Byte Count [5:0]—Indicates the number of Message Data [WORD1] bytes stored in
subsequent consecutive FIFO locations and which constitute one received message. The
reported byte count is the actual number of bytes, from 0 to 63 bytes, where 0 indicates 0 bytes
for the processor to read. The processor can either read the specified number of message data
bytes consecutively from RDL1, or poll RDL1_STAT after reading each data byte until
RDL1_STAT reports an end of message (i.e., RMPTY1=1 or RSTAT1=1).
Receive Message Data—Filled by the receiver data link, from LSB to MSB, with bits from the
selected channel. The processor reads 8-bit FIFO data during HDLC and Pack8 modes. During
Pack6 mode, only the six least significant bits RDL1[5:0] are filled.
In-Progress Receive Message—Real time status of receive message sequencer is provided
mostly for processor-polled applications. During HDLC modes, RMSG1 is high for the
interval between opening and closing FLAG characters to indicate that the receiver is filling
FIFO locations (in which case RSTAT1 is also held high). RMSG1 is low while the channel
receives FLAG or abort characters. During unformatted modes, RMSG1 is high continuously.
Next, FIFO Read Equals Message Status—For non-empty FIFO conditions (RMPTY1=0),
RSTAT1 indicates that the next byte read from RDL1 returns WORD0 message status or
WORD1 message data. RSTAT1 equals zero if the FIFO is empty and no message is
in-progress. The processor polls RSTAT1 before reading RDL1 to determine how to interpret
RDL1 read byte value, or the processor checks RSTAT1 in response to RMSG interrupt [ISR2;
addr 009].
RDL1[6]
—
Abort status is reported if the receiver detects a string of 7 or more consecutive 1s during an
6
6
RDL1[5]
—
5
5
00 = Good
01 = FCS/Non-integer
10 = Abort
11 = Partial
0 = channel idle
1 = channel actively filling FIFO
0 = RDL1 byte equals Message Data (or empty FIFO, if RMTPY1=1)
1 = RDL1 byte equals Message Status (if RMPTY1=0)
RDL1[4]
RMSG1
4
4
Conexant
RDL1[3]
RSTAT1
3
3
RMPTY1
RDL1[2]
2
2
RDL1[1]
RNEAR1
3.16 Data Link Registers
1
1
RDL1[0]
RFULL1
0
0
3-97
Related parts for BT8375
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
bt class 1 socket module w/ufl conn rn41-i/rm module...
Manufacturer:
Microchip
Datasheet:
Part Number:
Description:
V.34/Group 3 High Performance Fax Modem Family
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
SmartV.XX Modem
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
Demodulator and FEC Decoder Low-power QPSK demodulator for worldwide satellite set-top box applications
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
Dual Stream QPSK/BPSK Demodulator lC
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
Single-Chip FTA and FTA-CI Set-Top Box System Solution
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
Dual Digital Broadcast MPEG-2 Standard Definition TV Decoder with PVR Support
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
Digital Broadcast High-Definition TV Decoder with PVR Support
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
MPEG-4 AVC/H.264 Video Decoder
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
Dual Decode HDTV MPEG-2/H.264/VC-1 Video Decoder
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
VOICE PAIR GAIN FRAMER
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
Single/Dual/Triple E3/DS3/STS-1 Line Interface Unit
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
ATM Transmitter/Receiver with UTOPIA Interface
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
V.34/Group 3 High Performance Fax Modem Family
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet:
Part Number:
Description:
SmartV.XX Modem
Manufacturer:
CONEXANT [Conexant Systems, Inc]
Datasheet: