RS8953 Conexant Systems, Inc., RS8953 Datasheet - Page 118
RS8953
Manufacturer Part Number
RS8953
Description
High-bit-rate Digital Subscriber Line (hdsl) Channel unit
Manufacturer
Conexant Systems, Inc.
Datasheet
1.RS8953.pdf
(173 pages)
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4.0 Registers
4.11 Common Command
NCO_SCALE
FEBE_POLARITY
PRA_EN
4-50
NCO Scale Factor—Divides the NCO clock by 4 to allow the NCO to synthesize the RCLK
frequency at or below 128 kHz. GCLK and SCLK are not affected.
NOTE:
Determines the value of the FEBE bit that increments the FEBE counter.
Enable or globally disable the PRA circuitry.
Calculated values for DPLL_RESID [addr 0xD5] and DPLL_FACTOR [addr 0xD7]
are changed according to the following equation:
0 = Normal NCO operation
1 = Divide NCO clock (HFCLK) by 4
0 = FEBE counter increments when FEBE bit is high
1 = FEBE counter increments when FEBE bit is low
0 = Disable ALL PRA functionality
1 = Enable ALL PRA functionality
[INTEGER.FRACTION]
Conexant
=
f
------------------------------------------------ -
MCLK
4
2
PLL_MUL
f
PCM
RS8953B/8953SPB
HDSL Channel Unit
N8953BDSB
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