IDT82V3255TFG IDT, Integrated Device Technology Inc, IDT82V3255TFG Datasheet - Page 76

• Manufacturer Part Number: IDT82V3255TFG
• Description: IC PLL WAN SMC STRATUM 3 64-TQFP
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: PLL Clock Generatorr

Specifications of IDT82V3255TFG

• Input: CMOS, LVDS, PECL
• Output: CMOS, LVDS, PECL
• Frequency - Max: 622.08MHz
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-TQFP, 64-VQFP
• Frequency-max: 622.08MHz
• Function: Wan PLL
• Operating Temperature (max): 85C
• Operating Temperature (min): -40C
• Package Type: TQFP
• Pin Count: 64
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 82V3255TFG

BUCKET_SIZE_1_CNFG - Bucket Size for Leaky Bucket Configuration 1
DECAY_RATE_1_CNFG - Decay Rate for Leaky Bucket Configuration 1
UPPER_THRESHOLD_2_CNFG - Upper Threshold for Leaky Bucket Configuration 2
Programming Information
IDT82V3255
Address: 37H
Type: Read / Write
Default Value: 00001000
Address: 38H
Type: Read / Write
Default Value: XXXXXX01
Address: 39H
Type: Read / Write
Default Value: 00000110
SHOLD_2_DAT
BUCKET_SIZE
UPPER_THRE
7 - 0
7 - 0
Bit
_1_DATA7
7 - 2
1 - 0
Bit
Bit
A7
7
7
-
7
UPPER_THRESHOLD_2_DATA[7:0]
BUCKET_SIZE_1_DATA[7:0]
DECAY_RATE_1_DATA[1:0]
SHOLD_2_DAT
BUCKET_SIZE
UPPER_THRE
_1_DATA6
Name
Name
A6
6
6
-
6
Name
-
BUCKET_SIZE
SHOLD_2_DAT
UPPER_THRE
_1_DATA5
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.
Reserved.
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.
A5
5
5
-
5
These bits set an upper threshold for the internal leaky bucket accumulator. When the number of the accumu-
lated events is above this threshold, a no-activity alarm is raised.
SHOLD_2_DAT
BUCKET_SIZE
UPPER_THRE
_1_DATA4
A4
4
-
4
4
76
SHOLD_2_DAT
BUCKET_SIZE
UPPER_THRE
_1_DATA3
A3
3
3
-
3
Description
Description
Description
SHOLD_2_DAT
BUCKET_SIZE
UPPER_THRE
_1_DATA2
A2
2
2
-
2
DECAY_RATE_
BUCKET_SIZE
SHOLD_2_DAT
UPPER_THRE
_1_DATA1
1_DATA1
A1
1
1
1
December 3, 2008
BUCKET_SIZE
DECAY_RATE_
SHOLD_2_DAT
UPPER_THRE
_1_DATA0
1_DATA0
A0
0
0
0
WAN PLL