SBAS716 February 2019 ADC3244E
PRODUCTION DATA.
7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
CHB TEST PATTERN | 0 | 0 | 0 | 0 | |||
R/W-0h | W-0h | W-0h | W-0h | W-0h |
LEGEND: R/W = Read/Write; R = Read only; W = Write only; -n = value after reset |
Bit | Field | Type | Reset | Description |
---|---|---|---|---|
7-4 | CHB TEST PATTERN | R/W | 0h | These bits control the test pattern for channel B after the TEST PATTERN EN bit is set.
0000 = Normal operation 0001 = All 0's 0010 = All 1's 0011 = Toggle pattern: data alternate between 10101010101010 and 01010101010101 0100 = Digital ramp: data increment by 1 LSB every clock cycle from code 0 to 16383 0101 = Custom pattern: output data are the same as programmed by the CUSTOM PATTERN register bits 0110 = Deskew pattern: data are 2AAAh 1000 = PRBS pattern: data are a sequence of pseudo random numbers 1001 = 8-point sine-wave: data are a repetitive sequence of the following eight numbers that form a sine-wave: 0, 2399, 8192, 13984, 16383, 13984, 8192, 2399. Others = Do not use |
3-0 | 0 | W | 0h | Must write 0 |