Qdatasheet_Logo
Integrated circuits, Transistor, Semiconductors Search and Datasheet PDF Download Site

RS8953SPBEPF View Datasheet(PDF) - Conexant Systems

Part Name
Description
MFG CO.
RS8953SPBEPF
Conexant
Conexant Systems Conexant
'RS8953SPBEPF' PDF : 173 Pages View PDF
4.0 Registers
4.11 Common Command
RS8953B/8953SPB
HDSL Channel Unit
4.11 Common Command
Table 4-8. Common Command Write Registers
Address Register Label
Bits
0xE5
CMD_1
8
0xE6
CMD_2
8
0xE7
CMD_3
8
0xE8
CMD_4
8
0xE9
CMD_5
8
0xF3
CMD_6
8
0xF4
CMD_7
7
Name/Description
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
Configuration
0xE5—Command Register 1 (CMD_1)
7
E1_MODE
PLL_MUL[3:0]
PLL_DIV[1:0]
PLL_DIS
E1_MODE
6
5
4
3
2
1
0
PLL_DIS
PLL_DIV[1:0]
PLL_MUL[3:0]
PLL Multiplication Factor—The MCLK input frequency is multiplied from 1 to 16 times by
the selected value to create an internal HFCLK approximately equal to 70 MHz and in the
range of 60 to 80 MHz for DPLL clock recovery. When PLL_MUL has a value of 0xF, the PLL
output is invalid.
PLL_MUL [hex] 0 1 2 3 4 5 6 7 8 9 A B C D E F
MCLK Multiplier 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 –
PLL Division Factor—Selects a divisor to scale down the internal HFCLK frequency to create
a General Purpose Clock (GCLK) in the frequency range of 10–15 MHz. PLL_DIV
determines the GCLK frequency for the DPLL phase detector and loop filter.
PLL_DIV
00
01
10
11
HFCLK Divisor
2
4
6
8
PLL Disable—Disables the internal PLL which normally generates HFCLK. When disabled, a
60 to 80 MHz HFCLK must be applied externally on the MCLK input.
0 = Normal PLL operation
1 = Disable PLL (PLL_MUL value has no effect)
E1 or Nx64 Mode—Enables insertion of Z-bits from the TZBIT [addr 0x04] registers, and
extraction of Z-bits into the RZBIT [addr 0x04] registers. Otherwise, F-bits occupy the first bit
of HDSL payload blocks.
0 = HDSL payload includes F-bits (T1 mode)
1 = HDSL payload includes Z-bits (E1 mode)
4-44
Conexant
N8953BDSB
Share Link: GO URL

All Rights Reserved © qdatasheet.com  [ Privacy Policy ] [ Contact Us ]