RS8953 Conexant Systems, Inc., RS8953 Datasheet - Page 123

• Manufacturer Part Number: RS8953
• Description: High-bit-rate Digital Subscriber Line (hdsl) Channel unit
• Manufacturer: Conexant Systems, Inc.

RS8953B/8953SPB
HDSL Channel Unit
RZBIT[47:0]
N8953BDSB
0x18—Receive Z-Bits (RZBIT_2)
0x19—Receive Z-Bits (RZBIT_3)
0x1A—Receive Z-Bits (RZBIT_4)
0x1B—Receive Z-Bits (RZBIT_5)
0x1C—Receive Z-Bits (RZBIT_6)
0x05—Receive Status 1 (STATUS_1)
7
7
7
7
7
7
MAJOR_VER[1:0]
Receive Z-bits—Applicable only in E1_MODE [CMD_1; addr 0xE5]. RZBIT holds 48 Z–bits
received during the previous HDSL frame. Refer to
within the frame. The LSB RZBIT[0] is received first. The first 8 received Z-bits from each
HDSL channel are individually monitored in the RZBIT_1 registers. The last 40 received
Z-bits are monitored in the RZBIT_2–RZBIT_6 registers from only the single receive channel
selected by ZBIT_SEL [CMD_5; addr 0xE9]. Systems which need individual channel
monitoring of the last 40 Z-bits can use external circuitry to capture the Z-bits from the receive
HDSL auxiliary channel (RAUXn) outputs.
6
6
6
6
6
6
RFIFO_SLIP
5
5
5
5
5
5
RFIFO_MPTY
4
4
4
4
4
4
Conexant
RZBIT[23:16]
RZBIT[31:24]
RZBIT[39:32]
RZBIT[47:40]
RZBIT[15:8]
RFIFO_FULL
3
3
3
3
3
3
Figures 3-21
RX_STUFF
2
2
2
2
2
2
and
4.13 Receive/Transmit Status
TR_INVERT
3-26
1
1
1
1
1
1
for Z–bit positions
4.0 Registers
SYNC_AB
0
0
0
0
0
0
4-55