CS5490 datasheet(37/57 Pages) CIRRUS

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CS5490

DS982F3

6.6.8 Pulse Output Control (PulseCtrl) – Page 0, Address 9

Default = 0x00 0000

This register controls the input to the energy pulse generation (EPG) block.

[23:4]

Reserved.

EPGIN[3:0]

Selects the input to the energy pulse generation (EPG) block.

0000 = PAVG (Default)

0001 = Reserved

0010 = PSUM

0011 = QAVG

0100 = Reserved

0101 = QSUM

0110 = S

0111 = Reserved

1000 = SSUM

1001 = Unused

...

1111 = Unused

6.6.9 Register Lock Control (RegLock) – Page 0, Address 34

Default = 0x00 0000

[23:13]

Reserved.

DSP_LCK[12:8] DSP_LCK[4:0] = 0x16 sets the DSP lockable registers to be write protected from the

CS5490 internal calculation engine. Writing 0x09 unlocks the registers.

[7:5]

Reserved.

HOST_LCK[4:0] HOST_LCK[4:0] = 0x16 sets all the registers except RegLock, Status0, Status1, and

Status2 to be write protected from the serial interface. Writing 0x09 unlocks the registers.

000

654

EPGIN[3]

EPGIN[2]

EPGIN[1]

EPGIN[0]

DSP_LCK[4]

DSP_LCK[3]

DSP_LCK[2]

DSP_LCK[1]

DSP_LCK[0]

654

HOST_LCK[4] HOST_LCK[3] HOST_LCK[2] HOST_LCK[1] HOST_LCK[0]

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