参数资料
型号: IDT82V3255DK
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, PQFP64
封装: TQFP-64
文件页数: 88/127页
文件大小: 868K
代理商: IDT82V3255DK
IDT82V3255
WAN PLL
Programming Information
88
June 19, 2006
6.2.6
T0 / T4 DPLL STATE MACHINE CONTROL REGISTERS
OPERATING_STS - DPLL Operating Status
Address: 52H
Type: Read
Default Value: 10000001
Bit
Name
Description
7
EX_SYNC_ALARM_MON
This bit indicates whether the selected frame sync input signal is in external sync alarm status.
0: No external sync alarm.
1: In external sync alarm status. (default)
This bit indicates the T4 DPLL locking status.
0: Unlocked. (default)
1: Locked.
This bit indicates whether the T0 DPLL is in soft alarm status.
0: No T0 DPLL soft alarm. (default)
1: In T0 DPLL soft alarm status.
This bit indicates whether the T4 DPLL is in soft alarm status.
0: No T4 DPLL soft alarm. (default)
1: In T4 DPLL soft alarm status.
This bit indicates the T0 DPLL locking status.
0: Unlocked. (default)
1: Locked.
These bits indicate the current operating mode of T0 DPLL.
000: Reserved.
001: Free-Run. (default)
010: Holdover.
011: Reserved.
100: Locked.
101: Pre-Locked2.
110: Pre-Locked.
111: Lost-Phase.
6
T4_DPLL_LOCK
5
T0_DPLL_SOFT_FREQ_ALARM
4
T4_DPLL_SOFT_FREQ_ALARM
3
T0_DPLL_LOCK
2 - 0
T0_DPLL_OPERATING_MODE[2:0]
7
6
5
4
3
2
1
0
EX_SYNC_ALA
RM_MON
T4_DPLL_LO
CK
T0_DPLL_SOFT
_FREQ_ALARM
T4_DPLL_SOFT
_FREQ_ALARM
T0_DPLL_LO
CK
T0_DPLL_OPER
ATING_MODE2
T0_DPLL_OPER
ATING_MODE1
T0_DPLL_OPER
ATING_MODE0
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