82V3280EQG Integrated Device Technology (Idt), 82V3280EQG Datasheet - Page 133

• Manufacturer Part Number: 82V3280EQG
• Description: WAN PLL 100-Pin TQFP Tray
• Manufacturer: Integrated Device Technology (Idt)

Specifications of 82V3280EQG

• Package: 100TQFP
• Operating Temperature: -40 to 85 °C

CURRENT_DPLL_FREQ[23:16]_STS - DPLL Current Frequency Status 3 *
DPLL_FREQ_SOFT_LIMIT_CNFG - DPLL Soft Limit Configuration
DPLL_FREQ_HARD_LIMIT[7:0]_CNFG - DPLL Hard Limit Configuration 1
Programming Information
Address: 65H
Type: Read / Write
Default Value: 10001100
IDT82V3280
Address: 64H
Type: Read
Default Value: 00000000
Address: 66H
Type: Read / Write
Default Value: 10101011
DPLL_FREQ_H
FREQ_LIMT_P
CURRENT_DP
LL_FREQ23
6 - 0
ARD_LIMT7
7 - 0
Bit
7 - 0
Bit
7
Bit
H_LOS
7
7
7
DPLL_FREQ_SOFT_LIMT[6:0]
CURRENT_DPLL_FREQ[23:16]
DPLL_FREQ_HARD_LIMT[7:0] Refer to the description of the DPLL_FREQ_HARD_LIMT[15:8] bits (b7~0, 67H).
FREQ_LIMT_PH_LOS
CURRENT_DP
DPLL_FREQ_S
DPLL_FREQ_H
LL_FREQ22
OFT_LIMT6
ARD_LIMT6
Name
Name
6
6
6
Name
CURRENT_DP
DPLL_FREQ_S
DPLL_FREQ_H
LL_FREQ21
OFT_LIMT5
ARD_LIMT5
This bit determines whether the T0/T4 DPLL in hard alarm status will result in it unlocked.
0: Disabled.
1: Enabled. (default)
These bits represent an unsigned integer. If the value is multiplied by 0.724, the DPLL soft limit for T0 and T4 paths in
ppm will be gotten.
The DPLL soft limit is symmetrical about zero.
The CURRENT_DPLL_FREQ[23:0] bits represent a 2’s complement signed integer. If the value in these bits is mul-
tiplied by 0.000011, the current frequency offset of the T0/T4 DPLL output in ppm with respect to the master clock
will be gotten.
5
5
5
CURRENT_DP
DPLL_FREQ_S
DPLL_FREQ_H
LL_FREQ20
ARD_LIMT4
OFT_LIMT4
4
4
4
133
CURRENT_DP
DPLL_FREQ_S
DPLL_FREQ_H
LL_FREQ19
OFT_LIMT3
ARD_LIMT3
3
3
3
Description
Description
Description
CURRENT_DP
DPLL_FREQ_S
DPLL_FREQ_H
LL_FREQ18
OFT_LIMT2
ARD_LIMT2
2
2
2
CURRENT_DP
DPLL_FREQ_S
DPLL_FREQ_H
LL_FREQ17
ARD_LIMT1
OFT_LIMT1
1
1
1
December 9, 2008
DPLL_FREQ_S
DPLL_FREQ_H
CURRENT_DP
LL_FREQ16
ARD_LIMT0
OFT_LIMT0
0
0
0
WAN PLL