RS8953 Conexant Systems, Inc., RS8953 Datasheet - Page 102

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

4.0 Registers
4.8 Transmit Bit Stuffing Thresholds
STF_THRESH_C[8:0]
4-34
0xD4—Bit Stuffing Threshold C (STF_THRESH_C_HI)
—
7
If the phase measured from PCM to HDSL 6 ms frames is a positive value less than
STF_THRESH_C, then 4 STUFF bits are inserted in the outgoing frame. If the phase is a
positive value greater than or equal to STF_THRESH_C, then the phase tolerance on HDSL,
PCM, or GCLK inputs is exceeded and the STUFF generator reports STUFF_ERR
[STATUS_3; addr 0x07].
NOTE:
Bit Stuffing Threshold C—Contains the number of GCLK cycles equal to 24 HDSL bit times.
—
6
STF_THRESH_C must be greater than STF_THRESH_B by a value of 4 HDSL bit
times (4 x HDSL
—
5
GCLK) but not greater than a value of 0x3FF.
—
4
Conexant
—
3
—
2
RS8953B/8953SPB
STF_THRESH_C[9:8]
1
HDSL Channel Unit
N8953BDSB
0