參數(shù)資料
型號(hào): IDT82V3355TFG
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 86/135頁
文件大?。?/td> 0K
描述: IC PLL WAN SYNC ETH 64-TQFP
標(biāo)準(zhǔn)包裝: 1
類型: 時(shí)鐘/頻率發(fā)生器,多路復(fù)用器
PLL:
主要目的: 以太網(wǎng),SONET/SDH,Stratum
輸入: CMOS,LVDS,PECL
輸出: CMOS,LVDS,PECL
電路數(shù): 1
比率 - 輸入:輸出: 3:2
差分 - 輸入:輸出: 是/是
頻率 - 最大: 622.08MHz
電源電壓: 3 V ~ 3.6 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 64-LQFP
供應(yīng)商設(shè)備封裝: 64-TQFP(10x10)
包裝: 托盤
其它名稱: 82V3355TFG
IDT82V3355
SYNCHRONOUS ETHERNET WAN PLL
Programming Information
54
May 19, 2009
T4_T0_REG_SEL_CNFG - T0 / T4 Registers Selection Configuration
PHASE_ALARM_TIME_OUT_CNFG - Phase Lock Alarm Time-Out Configuration
Address: 07H
Type: Read / Write
Default Value: XXX0XXXX
Bit
Name
Description
7 - 5
-
Reserved.
4
T4_T0_SEL
A part of the registers are shared by T0 and T4 paths. These registers are addressed 27H, 28H, 2AH, 4EH, 4FH, 5AH, 5BH, 62H
~ 64H, 68H and 69H. This bit determines whether the register configuration is available for T0 or T4 path.
0: T0 path (default).
1: T4 path.
3 - 0
-
Reserved.
Address: 08H
Type: Read / Write
Default Value: 00110010
Bit
Name
Description
7 - 6
MULTI_FACTOR[1:0]
These bits determine a factor which has a relationship with a period in seconds. A phase lock alarm will be raised if the T0
selected input clock is not locked in T0 DPLL within this period. If the PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, the
phase lock alarm will be cleared after this period (starting from when the alarm is raised). Refer to the description of the
TIME_OUT_VALUE[5:0] bits (b5~0, 08H).
00: 2 (default)
01: 4
10: 8
11: 16
5 - 0
TIME_OUT_VALUE[5:0]
These bits represent an unsigned integer. If the value in these bits is multiplied by the value in the MULTI_FACTOR[1:0]
bits (b7~6, 08H), a period in seconds will be gotten.
A phase lock alarm will be raised if the T0 selected input clock is not locked in T0 DPLL within this period. If the
PH_ALARM_TIMEOUT bit (b5, 09H) is ‘1’, the phase lock alarm will be cleared after this period (starting from when the
alarm is raised).
7
654
321
0
-
T4_T0_SEL
-
76
54
3
2
1
0
MULTI_FACTO
R1
MULTI_FACTO
R0
TIME_OUT_VA
LUE5
TIME_OUT_VA
LUE4
TIME_OUT_VA
LUE3
TIME_OUT_VA
LUE2
TIME_OUT_VA
LUE1
TIME_OUT_VAL
UE0
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