参数资料
型号: IDT82V3280PF
厂商: INTEGRATED DEVICE TECHNOLOGY INC
元件分类: 通信及网络
英文描述: WAN PLL
中文描述: SPECIALTY TELECOM CIRCUIT, PQFP100
封装: TQFP-100
文件页数: 139/167页
文件大小: 1039K
代理商: IDT82V3280PF
IDT82V3280
WAN PLL
Programming Information
139
June 19, 2006
OUT4_FREQ_CNFG - Output Clock 4 Frequency Configuration
Address: 6EH
Type: Read / Write
Default Value: 00000110
Bit
Name
Description
7 - 4
OUT4_PATH_SEL[3:0]
These bits select an input to OUT4.
0000 ~ 0011: The output of T0 APLL. (default: 0000)
0100: The output of T0 DPLL 77.76 MHz path.
0101: The output of T0 DPLL 12E1/24T1/E3/T3 path.
0110: The output of T0 DPLL 16E1/16T1 path.
0111: The output of T0 DPLL GSM/OBSAI/16E1/16T1 path.
1000 ~ 1011: The output of T4 APLL.
1100: The output of T4 DPLL 77.76 MHz path.
1101: The output of T4 DPLL 12E1/24T1/E3/T3 path.
1110: The output of T4 DPLL 16E1/16T1 path.
1111: The output of T4 DPLL GSM/GPS/16E1/16T1 path.
These bits select a division factor of the divider for OUT4.
The output frequency is determined by the division factor and the signal derived from T0/T4 DPLL or T0/T4 APLL output
(selected by the OUT4_PATH_SEL[3:0] bits (b7~4, 6EH)). If the signal is derived from one of the T0/T4 DPLL outputs,
please refer to
Table 24
for the division factor selection. If the signal is derived from the T0/T4 APLL output, please refer to
Table 25
for the division factor selection.
3 - 0
OUT4_DIVIDER[3:0]
7
6
5
4
3
2
1
0
OUT4_PATH_S
EL3
OUT4_PATH_S
EL2
OUT4_PATH_S
EL1
OUT4_PATH_S
EL0
OUT4_DIVIDER
3
OUT4_DIVIDER
2
OUT4_DIVIDER
1
OUT4_DIVIDER
0
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