IDT82V3255TFG IDT, Integrated Device Technology Inc, IDT82V3255TFG Datasheet - Page 77

• 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

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
Programming Information
IDT82V3255
Address: 3AH
Type: Read / Write
Default Value: 00000100
Address: 3BH
Type: Read / Write
Default Value: 00001000
Address: 3CH
Type: Read / Write
Default Value: XXXXXX01
LOWER_THRE
SHOLD_2_DAT
BUCKET_SIZE
7 - 0
7 - 2
1 - 0
7 - 0
Bit
Bit
Bit
_2_DATA7
A7
7
7
7
-
BUCKET_SIZE_2_DATA[7:0]
DECAY_RATE_2_DATA[1:0]
LOWER_THRESHOLD_2_DATA[7:0]
LOWER_THRE
SHOLD_2_DAT
BUCKET_SIZE
_2_DATA6
Name
Name
-
A6
6
6
6
-
Name
SHOLD_2_DAT
LOWER_THRE
BUCKET_SIZE
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.
_2_DATA5
A5
5
5
5
-
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.
SHOLD_2_DAT
LOWER_THRE
BUCKET_SIZE
_2_DATA4
A4
4
4
4
-
77
LOWER_THRE
SHOLD_2_DAT
BUCKET_SIZE
_2_DATA3
A3
3
3
3
-
Description
Description
Description
LOWER_THRE
SHOLD_2_DAT
BUCKET_SIZE
_2_DATA2
A2
2
2
2
-
SHOLD_2_DAT
DECAY_RATE_
LOWER_THRE
BUCKET_SIZE
_2_DATA1
2_DATA1
A1
1
1
1
December 3, 2008
SHOLD_2_DAT
LOWER_THRE
BUCKET_SIZE
DECAY_RATE_
_2_DATA0
2_DATA0
A0
0
0
0
WAN PLL