82V1671JG8 IDT, Integrated Device Technology Inc, 82V1671JG8 Datasheet - Page 72
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82V1671JG8
Manufacturer Part Number
82V1671JG8
Description
Manufacturer
IDT, Integrated Device Technology Inc
Datasheet
1.82V1671JG8.pdf
(107 pages)
Specifications of 82V1671JG8
Number Of Channels
4
On-hook Transmission
Yes
Polarity Reversal
Yes
On-chip Ring Relay Driver
Yes
Operating Supply Voltage (typ)
3.3V
Operating Temp Range
-40C to 85C
Package Type
PLCC
Operating Temperature Classification
Industrial
Pin Count
28
Mounting
Surface Mount
Operating Current
95mA
Operating Supply Voltage (max)
3.465V
Operating Supply Voltage (min)
3.135V
Lead Free Status / RoHS Status
Compliant
RSLIC & CODEC CHIPSET
GREG24: Interrupt Polarity Selection Register, Read/Write (37H/B7H)
GREG25: Reserved
GREG26: RSLIC Status, Read (39H); Interrupt Clear, Write (B9H)
INT_POL
This register is reserved for future use.
In MPI mode, when applying a read operation to this register, the off-hook and ground-key status of all four channels will be read out. If
an interrupt caused by off-hook or ground-key detection is pending, reading this register will clear the interrupt.
HK[3:0]
GK[3:0]
In GCI mode, the off-hook and ground-key status are reported via the upstream C/I channel only. Reading this register will always get a
result of 00H. If an interrupt caused by off-hook or ground-key detection is pending, applying a read command to this register will clear
the interrupt.
In both MPI and GCI modes, when applying a write operation to this register, all the interrupts will be cleared.
Command
Command
I/O data
I/O data
Interrupt polarity selection. The INT_POL bit determines the valid polarity of all the interrupt signals including the
INT_CHA and INT_CHB bits in GCI C/I channel.
INT_POL = 0:
INT_POL = 1:
Off-hook status.
HK[0] = 0:
HK[0] = 1:
HK[1] = 0:
HK[1] = 1:
HK[2] = 0:
HK[2] = 1:
HK[3] = 0:
HK[3] = 1:
ground-key status.
GK[0] = 0:
GK[0] = 1:
GK[1] = 0:
GK[1] = 1:
GK[2] = 0:
GK[2] = 1:
GK[3] = 0:
GK[3] = 1:
GK[3]
R/W
R/W
b7
b7
Reserved
HK[3]
b6
b6
0
0
Active low (default);
Active high.
Channel 1 is on-hook (default);
Channel 1 is off-hook.
Channel 2 is on-hook (default);
Channel 2 is off-hook.
Channel 3 is on-hook (default);
Channel 3 is off-hook.
Channel 4 is on-hook (default);
Channel 4 is off-hook.
No longitudinal current detected on Channel 1 (default);
Longitudinal current detected (ground-key or ground start) on Channel 1;
No longitudinal current detected on Channel 2 (default);
Longitudinal current detected (ground-key or ground start) on Channel 2;
No longitudinal current detected on Channel 3 (default);
Longitudinal current detected (ground-key or ground start) on Channel 3;
No longitudinal current detected on Channel 4 (default);
Longitudinal current detected (ground-key or ground start) on Channel 4;
GK[2]
b5
b5
1
1
INT_POL
HK[2]
72
b4
b4
1
1
GK[1]
b3
b3
0
1
HK[1]
b2
b2
1
0
IDT82V1671/IDT82V1671A, IDT82V1074
Reserved
GK[0]
b1
b1
1
0
HK[0]
b0
b0
1
1