参数资料
型号: IDT82V3355TFG8
厂商: IDT, Integrated Device Technology Inc
文件页数: 112/135页
文件大小: 0K
描述: IC PLL WAN SYNC ETH 64-TQFP
标准包装: 1,250
类型: 时钟/频率发生器,多路复用器
PLL:
主要目的: 以太网,SONET/SDH,Stratum
输入: CMOS,LVDS,PECL
输出: CMOS,LVDS,PECL
电路数: 1
比率 - 输入:输出: 3:2
差分 - 输入:输出: 是/是
频率 - 最大: 622.08MHz
电源电压: 3 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 64-LQFP
供应商设备封装: 64-TQFP(10x10)
包装: 带卷 (TR)
其它名称: 82V3355TFG8
IDT82V3355
SYNCHRONOUS ETHERNET WAN PLL
Programming Information
78
May 19, 2009
LOWER_THRESHOLD_2_CNFG - Lower Threshold for Leaky Bucket Configuration 2
BUCKET_SIZE_2_CNFG - Bucket Size for Leaky Bucket Configuration 2
DECAY_RATE_2_CNFG - Decay Rate for Leaky Bucket Configuration 2
Address: 3AH
Type: Read / Write
Default Value: 00000100
Bit
Name
Description
7 - 0
LOWER_THRESHOLD_2_DATA[7:0]
These bits set a lower threshold for the internal leaky bucket accumulator. When the number of the accumu-
lated events is below this threshold, the no-activity alarm is cleared.
Address: 3BH
Type: Read / Write
Default Value: 00001000
Bit
Name
Description
7 - 0
BUCKET_SIZE_2_DATA[7:0]
These bits set a bucket size for the internal leaky bucket accumulator. If the number of the accumulated events reach
the bucket size, the accumulator will stop increasing even if further events are detected.
Address: 3CH
Type: Read / Write
Default Value: XXXXXX01
Bit
Name
Description
7 - 2
-
Reserved.
1 - 0
DECAY_RATE_2_DATA[1:0]
These bits set a decay rate for the internal leaky bucket accumulator:
00: The accumulator decreases by 1 in every 128 ms with no event detected.
01: The accumulator decreases by 1 in every 256 ms with no event detected. (default)
10: The accumulator decreases by 1 in every 512 ms with no event detected.
11: The accumulator decreases by 1 in every 1024 ms with no event detected.
76543210
LOWER_THRE
SHOLD_2_DAT
A7
LOWER_THRE
SHOLD_2_DAT
A6
LOWER_THRE
SHOLD_2_DAT
A5
LOWER_THRE
SHOLD_2_DAT
A4
LOWER_THRE
SHOLD_2_DAT
A3
LOWER_THRE
SHOLD_2_DAT
A2
LOWER_THRE
SHOLD_2_DAT
A1
LOWER_THRE
SHOLD_2_DAT
A0
76543210
BUCKET_SIZE
_2_DATA7
BUCKET_SIZE
_2_DATA6
BUCKET_SIZE
_2_DATA5
BUCKET_SIZE
_2_DATA4
BUCKET_SIZE
_2_DATA3
BUCKET_SIZE
_2_DATA2
BUCKET_SIZE
_2_DATA1
BUCKET_SIZE
_2_DATA0
765432
1
0
----
--
DECAY_RATE_
2_DATA1
DECAY_RATE_
2_DATA0
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