SI3211-E-FT Silicon Laboratories Inc, SI3211-E-FT Datasheet - Page 117
SI3211-E-FT
Manufacturer Part Number
SI3211-E-FT
Description
IC SLIC/CODEC PROG 1CH 38QFN
Manufacturer
Silicon Laboratories Inc
Series
ProSLIC®r
Specifications of SI3211-E-FT
Function
Subscriber Line Interface Concept (SLIC), CODEC
Interface
PCM, SPI
Number Of Circuits
1
Voltage - Supply
3.3V, 5V
Current - Supply
88mA
Power (watts)
700mW
Operating Temperature
0°C ~ 70°C
Mounting Type
Surface Mount
Package / Case
*
Includes
BORSCHT Functions, DTMF Generation and Decoding, FSK Caller ID Generation, Pulse Metering Generation, Ringing and Battery Voltag
Product
Telecom
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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4. Indirect Registers
Indirect registers are not directly mapped into memory but are accessible through the IDA and IAA registers. A
write to IDA followed by a write to IAA is interpreted as a write request to an indirect register. In this case, the
contents of IDA are written to indirect memory at the location referenced by IAA at the next indirect register update.
A write to IAA without first writing to IDA is interpreted as a read request from an indirect register. In this case, the
value located at IAA is written to IDA at the next indirect register update. Indirect registers are updated at a rate of
16 kHz. For pending indirect register transfers, IAS (direct Register 31) will be one until serviced. In addition, an
interrupt, IND (Register 20), can be generated upon completion of the indirect transfer.
4.1. DTMF Decoding
All values are represented in 2s-complement format.
Note: The values of all indirect registers are undefined following the reset state.
Addr. D15
10
11
12
0
1
2
3
4
5
6
7
8
9
D14
D13
D12
Table 37. DTMF Indirect Registers Summary
D11
D10
D9
ROWREL[15:0]
Rev. 1.5
PWRMIN[15:0]
COLREL[15:0]
FWDTW[15:0]
REVTW[15:0]
ROW0[15:0]
ROW1[15:0]
ROW2[15:0]
ROW3[15:0]
ROW2[15:0]
COL2[15:0]
HOTL[15:0]
COL[15:0]
D8
D7
D6
D5
Si3210/Si3211
D4
D3
D2
D1
D0
117
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