Sundance SMT942 - Manual (Page 28)

User Manual SMT942 Page 28 of 55 Last Edited: 23/08/2011 17:25:00
1
Setting Bit 12 Description nRESET_nHOLD
0
1
DAC Status
DAC Chab Register 0 0x30
Setting Bit 1:0 Description - Version
0 0 Read-only – Returns ‘00’ for DAC5688
Setting Bit 4:2 Description Divice ID
0 0 Read Only – returns ‘000’ for DAc5688
Setting Bit 7 Description PLL Lock Status
0 0 Read-only – PLL not locked.
1 1 Read-Only – PLL locked.
DAC Chab Register 0 0x30.
DAC Chab Register 0 0x30
Byte Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
1 Reserv
ed
Clk1_in_e
na
Clk1c_in_ena Reserved Fir4_en qmc_offset_en
a
qmc_corr_en
a
mixer_en
a
Default ‘1’ ‘1’ ‘1’ ‘0’ ‘0’ ‘0’ ‘0’ ‘0’
0 insel_mode Reserved Synchr_c
lkin
Twos inv_clk interp_value
Default ‘00’ ‘0’ ‘0’ ‘0’ ‘0’ ‘00’
DAC Chab Register 0 0x30
Setting Bit 1:0 Description interpolation value
0 00 1x.
1 01 2x.
2 10 4x.
3 11 8x.
Setting Bit 2 Description inv_clk
0 0 Input clock not inverted.
1 1 Input clock inverted.
Setting Bit 2 Description twos
0 0 Binary format
1 1 Two’s complement format.