IDT821068PX IDT, Integrated Device Technology Inc, IDT821068PX Datasheet - Page 27

• Manufacturer Part Number: IDT821068PX
• Manufacturer: IDT, Integrated Device Technology Inc
• Type: General Purposer

Specifications of IDT821068PX

• Number Of Adc's: 8
• Number Of Dac's: 8
• Interface Type: Serial
• Power Supply Type: Analog/Digital
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Pin Count: 128
• Operating Temperature (min): -40C
• Operating Temperature (max): 85C
• Screening Level: Industrial
• Package Type: PQFP
• Mounting: Surface Mount
• Lead Free Status / Rohs Status: Not Compliant

15. SLIC Ring Trip Setting (2EH/AEH), Read/Write
16. Level Meter Result Low Register (30H), Read Only
read the level meter result, users should read the low register which contains LVLL[7:0] data first, then read the high register which contains
LVLH[7:0] data. Once the high register is read, the LVLL[0] bit is cleared immediately.
17. Level Meter Result High Register (31H), Read Only
18. Level Meter Counter (32H/B2H), Read/Write
IDT821068 OCTAL PROGRAMMABLE PCM CODEC
Output Selection bits OS[2:0] determine which output pin will be selected as the ring control signal source.
Ring Trip Enable bit RTE enables or disables the ring trip function block:
Input Selection bit IS determines which input will be selected as the off-hook indication signal source.
Input Polarity Indicator bit IPI indicates the valid polarity of input.
Output Polarity Indicator bit OPI indicates the valid polarity of output.
This register contains the lower 8 bits of Level Meter output with the default value of ‘0000-0000’, LVLL[0] is the active high data_ready bit. To
This register contains the higher 8 bits of Level Metering output with the default value of 0(d).
Level Meter Counter register is used to configure the number of time cycles for sampling PCM data.
SB2C[3] = 0: SB2 pin on Channel 4 is configured as input (default);
SB2C[3] = 1: SB2 pin on Channel 4 is configured as output;
SB2C[4] = 0: SB2 pin on Channel 5 is configured as input (default);
SB2C[4] = 1: SB2 pin on Channel 5 is configured as output;
SB2C[5] = 0: SB2 pin on Channel 6 is configured as input (default);
SB2C[5] = 1: SB2 pin on Channel 6 is configured as output;
SB2C[6] = 0: SB2 pin on Channel 7 is configured as input (default);
SB2C[6] = 1: SB2 pin on Channel 7 is configured as output;
SB2C[7] = 0: SB2 pin on Channel 8 is configured as input (default);
SB2C[7] = 1: SB2 pin on Channel 8 is configured as output;
OS = 000 - 010: not defined;
OS = 011: SB1 is selected (when it is configured as an output);
OS = 100: SB2 is selected (when it is configured as an output);
OS = 101: SO1 is selected;
OS = 110: SO2 is selected;
OS = 111: SO3 is selected.
RTE = 0: the ring trip function block is disabled (default);
RTE = 1: the ring trip function block is enabled.
IS = 0: SI1 is selected (default);
IPI = 0: active low (default); IPI = 1: active high.
OPI = 0: the selected output pin changes from high to low to activate the ring (default);
OPI = 1: the selected output pin changes from low to hight to activate the ring.
CN = 0 (d): the linear or compressed PCM data is output to LMRH and LMRL directly (default);
CN = N: PCM data is sampled for N * 125 s (N from 1 to 255).
Command
Command
Command
Command
I/O data
I/O data
I/O data
I/O data
LMRH[7]
LMRL[7]
CN[7]
R /W
R /W
OPI
b7
b7
b7
b7
0
0
LMRH[6]
LMRL[6]
CN[6]
b6
b6
b6
b6
R
0
0
0
0
IS = 1: SI2 is selected.
LMRL[5]
LMRH[5]
CN[5]
IPI
b5
b5
b5
1
b5
1
1
1
27
LMRL[4]
LMRH[4]
CN[4]
b4
IS
b4
b4
0
b4
1
1
1
LMRL[3]
LMRH[3]
CN[3]
RTE
b3
b3
b3
b3
1
0
0
0
LMRH[2]
LMRL[2]
OS[2]
CN[2]
b2
b2
b2
b2
1
0
0
INDUSTRIAL TEMPERATURE RANGE
0
LMRH[1]
LMRL[1]
OS[1]
CN[1]
b1
b1
b1
1
b1
0
1
0
LMRH[0]
OS[0]
DRLV
CN[0]
b0
b0
b0
b0
0
1
0
0