Sundance SMT943 - Manual (Page 35)

User Manual SMT943 Page 35 of 54 Last Edited: 23/08/2011 17:24:00
ADC Chab Register 0 0x30.
ADC Chab Register 0 0x30
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
1 Reserved Enable Low
Speed
Mode
Reserved
Default ‘00000’ ‘0’ ‘00’
0 Software
Reset
Reserved SerialRead
Out
Default ‘0’ ‘000000’ ‘0’
ADC Chab Register 0 0x30
Setting Bit 0 Description SerialReadOut
0 ‘0’ Serial readout disabled.
1 ‘1’ Serial readout enabled.
Setting Bit 7 Description - Software Reset
0 ‘0’ Normal mode of operation.
1 ‘1’ Resets all internal registers and self-clears to ‘0’.
Setting Bit 10 Description - Enable Low Speed Mode
0 ‘0’ Low Speed Mode disabled. Sampling rates >100MSPS.
0 ‘1’ Low Speed Mode enabled. Sampling rates <=100 MSPS.
ADC Chab Register 1 0x31.
ADC Chab Register 1 0x31
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 Reserved Reference Reserved Standby Reserved
Default ’0’ ‘00’ ‘000’ ‘0’ ‘0’
1 Reserved PowerDownModes
Default ‘0000’ ‘0000’
ADC Chab Register 1 0x31
Setting Bit 1 Description Standby.
0 ‘0’ Normal mode of operation.
1 ‘1’ Both ADC channels are put into standby mode (internal ref and output buffers still
active).
Setting Bit 6:5 Description Reference.
0 ‘01’ Internal Reference enabled.
1 ‘11’ External Reference enabled.
Setting Bit 11:8 Description Power down modes.
0 ‘0000’ Pins ctrl1, 2 and 3 determine power down modes.
1 ‘1000’ Normal mode of operation.