ZHCSV76A June 2022 – March 2024 TMS570LC4357-SEP
PRODUCTION DATA
請(qǐng)參考 PDF 數(shù)據(jù)表獲取器件具體的封裝圖。
The self-test, if enabled, is automatically applied to the entire processor group. Self-test will only start when nCLKSTOPPEDm is asserted which indicates the CPU cores and the ACP interface are in quiescent state. While the processor group is in self-test, other masters can still function normally including accesses to the system memory such as the L2 SRAM. Because uSCU is part of the processor group under self-test, the cache coherency checking will be bypassed.
When the self-test is completed, reset is asserted to all logic subjected to self-test. After self-test is complete, software must invalidate the cache accordingly.
The default value of the CPU LBIST clock prescaler is’ divide-by-1’. A prescalar in the STC module can be used to configure the CPU LBIST frequency with respect to the CPU GCLK frequency.
Table 7-9 lists the CPU test coverage achieved for each self-test interval. It also lists the cumulative test cycles. The test time can be calculated by multiplying the number of test cycles with the STC clock period.
| INTERVALS | TEST COVERAGE, % | TEST CYCLES |
|---|---|---|
| 0 | 0 | 0 |
| 1 | 56.85 | 1629 |
| 2 | 64.19 | 3258 |
| 3 | 68.76 | 4887 |
| 4 | 71.99 | 6516 |
| 5 | 75 | 8145 |
| 6 | 76.61 | 9774 |
| 7 | 78.08 | 11403 |
| 8 | 79.2 | 13032 |
| 9 | 80.18 | 14661 |
| 10 | 81.03 | 16290 |
| 11 | 81.9 | 17919 |
| 12 | 82.58 | 19548 |
| 13 | 83.24 | 21177 |
| 14 | 83.73 | 22806 |
| 15 | 84.15 | 24435 |
| 16 | 84.52 | 26064 |
| 17 | 84.9 | 27693 |
| 18 | 85.26 | 29322 |
| 19 | 85.68 | 30951 |
| 20 | 86.05 | 32580 |
| 21 | 86.4 | 34209 |
| 22 | 86.68 | 35838 |
| 23 | 86.94 | 37467 |
| 24 | 87.21 | 39096 |
| 25 | 87.48 | 40725 |
| 26 | 87.74 | 42354 |
| 27 | 87.98 | 43983 |
| 28 | 88.18 | 45612 |
| 29 | 88.38 | 47241 |
| 30 | 88.56 | 48870 |
| 31 | 88.75 | 50499 |
| 32 | 88.93 | 52128 |
| 33 | 89.1 | 53757 |
| 34 | 89.23 | 55386 |
| 35 | 89.41 | 57015 |
| 36 | 89.55 | 58644 |
| 37 | 89.7 | 60273 |
| 38 | 89.83 | 61902 |
| 39 | 89.96 | 63531 |
| 40 | 90.1 | 65160 |