IDT82V1671AJ IDT, Integrated Device Technology Inc, IDT82V1671AJ Datasheet - Page 72

• Manufacturer Part Number: IDT82V1671AJ
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT82V1671AJ

• 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