Datasheet

Integrator Parameter Register (addresses 0x03, 0x09, 0x0F and 0x15)
AMC1210
www.ti.com .............................................................................................................................................................. SBAS372D – APRIL 2006 – REVISED MAY 2009
The Integrator Parameter Register controls the integrator functionality. It specifies the integrator oversampling
ratio, mode select, shift control, integrator and demodulation enable and data representation control bits.
Table 16 shows the Integrator Parameter Register.
Table 16. Integrator Parameter Register
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8 Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
SH4 SH3 SH2 SH1 SH0 DR DEN IEN IMOD IOSR6 IOSR5 IOSR4 IOSR3 IOSR2 IOSR1 IOSR0
'0' '0' '0' '0' '0' '0' '0' '0' '0' '0' '0' '0' '0' '0' '0' '0'
RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW RW
BIT POSITION BIT DESCRIPTION
Shift control.
15 – 11 SH4 – SH0 These bits indicate by how many bits the 16-bit window is shifted up when 16-bit data
representation is chosen.
Data representation.
10 DR 0: The data is stored in 16-bit two's complement
1: The data is stored in 32-bit two's complement
Demodulation enable.
9 DEN 0: The demodulation for resolver applications is disabled
1: The demodulation for resolver applications is enabled
Integrator enable.
8 IEN 0: The data from the sinc filter output is stored in the register map
1: The data from the integrator is stored in the register map
Integrator mode.
7 IMOD 0: The oversampling mode updates the data output of the integrator
1: The selected sample-and-hold signal updates the data output of the integrator
Oversampling ratio. The actual rate is IOSR + 1.
6 – 0 IOSR6 – IOSR0 These bits set the oversampling ratio of the integrator.
0x03 represents an oversampling ratio of 4.
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