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L9659 датащи(PDF) 42 Page - STMicroelectronics |
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L9659 датащи(HTML) 42 Page - STMicroelectronics |
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42 / 51 page ![]() Functional description L9659 42/51 Doc ID 022048 Rev 2 SQP bit: Squib Pin to be tested during short to battery/ground diagnostics 0 = SQBLx pin test 1 = SQBHx pin test Bits D4 Used to disable IPD on all channels 0 = IPD active as indicated; – Active for all channels except the one under test when running Short to Battery/Ground and short between loops Diagnostics and LS/HS FET test – Active for all channels when running Stop Diagnostic, Resistance Diagnostics, High Squib Resistance Diagnostics, HSS Diagnostic and VRESx Diagnostics 1 = IPD disabled on all channels Bits D3 AMC Bit Bit used for resistance measurement amplifier calibration. Only valid when squib resistance diagnostics is selected, otherwise this it will be ignored and a 0 will be reported in the response 0 = No calibration (Normal squib resistance measurements) 1 = Calibration For bits D2:D0 The following table shall be used for channel selection. All other combinations for MOSI bits D2:D0 will produce an error response of 0xD000. Note: Except for short to battery /ground diagnostics and loop to loop test the state of IPD (D4) will not affect the test. Table 25. Channel selection Channel Bit D2 Bit D1 Bit D0 0 0 0 0 1 0 0 1 2 0 1 0 3 0 1 1 41 0 0 51 0 1 61 1 0 71 1 1 |
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