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5.1.2 ADC Data Register (Address 0x02)
The ADC Data Register DATAREG contains the converted data value. The 12 bit ADC value is shifted
to the higher bits of the data register by hardware. This allows direct processing of the data as a 16 bit
two’s complement integer value for the TIP500-10/11 and 16 bit straight binary for TIP500-20/21.
Figure 5-1 : DATAREG - ADC Data Register (Address 0x02)
Description
ADC Data Value
Binary two’s complement
TIP500-10/-11
Straight binary
TIP500 -20/-21
+ Full Scale (FS -1LSB)
0x7FF0
0xFFF0
Midscale
0x0000
0x8000
1 LSB Below Midscale
0xFFF0
0x7FF0
- Full Scale
0x8000
0x0000
Table 5-3 : ADC Data Coding
The content of ADC DATAREG is only valid when the ADC Busy Flag is read as ‘0’.
TIP500 User Manual Issue 1.1.9
Page 13 of 26