SPNS141G August 2010 – October 2018 TMS570LS10106 , TMS570LS10116 , TMS570LS10206 , TMS570LS20206 , TMS570LS20216
PRODUCTION DATA.
Refer to the PDF data sheet for device specific package drawings
The CPU Self Test Controller (STC) is used to test the ARM CPU core using a Deterministic Logic BIST (LBIST) Controller as the test engine. The STC has the capability of dividing the complete test run into smaller independent test sets (intervals). The test coverage and number of test execution cycles for each test interval is shown in the table below.
The maximum clock rate for the STC / LBIST is:
In order to achieve the proper clock rate during CPU self test a STC clock divider has been implemented. The clock divider is set by the CLKDIV bits in STCCLKDIV register in the secondary system module frame at location 0xFFFF E108. The default value of the CPU Self Test LBIST clock divider is set to 'divide-by-1’.
NOTE
The supply current while performing CPU self test is different than the device operating mode current. These values can be found in the Icc section of Section 7.3.
Intervals | Test Coverage | Test Cycles (STC Clock Cycles) |
---|---|---|
0 | 0% | 0 |
1 | 57.14% | 1,555 |
2 | 65.82% | 3,108 |
3 | 70.56% | 4,661 |
4 | 73.56% | 6,214 |
5 | 76.06% | 7,767 |
6 | 78.07% | 9,320 |
7 | 79.62% | 10,873 |
8 | 80.92% | 12,426 |
9 | 82.1% | 13,979 |
10 | 82.94% | 15,532 |
11 | 83.76% | 17,085 |
12 | 84.51% | 18,638 |
13 | 85.12% | 20,191 |
14 | 85.62% | 21,744 |
15 | 86.19% | 23,297 |
16 | 86.56% | 24,850 |
17 | 86.97% | 26,403 |
18 | 87.33% | 27,956 |
19 | 87.67% | 29,509 |
20 | 88.01% | 31,062 |
21 | 88.31% | 32,615 |
22 | 88.58% | 34,168 |
23 | 88.87% | 35,721 |
24 | 89.11% | 37,274 |
25 | 89.34% | 38,827 |
26 | 89.59% | 40,380 |
27 | 89.82% | 41,933 |
28 | 90.05% | 43,486 |
29 | 90.26% | 45,039 |
30 | 90.46% | 46,592 |
31 | 90.64% | 48,145 |
32 | 90.84% | 49,698 |