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MMA5206WR2 数据表(PDF) 17 Page - Freescale Semiconductor, Inc |
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MMA5206WR2 数据表(HTML) 17 Page - Freescale Semiconductor, Inc |
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17 / 61 page ![]() Sensors Freescale Semiconductor 17 MMA52xxWR Preliminary 3.1.5.5 User Production Date Information (YEAR[3:0], MONTH[3:0], DAY[4:0) The user production date information registers are user programmable OTP registers which contain the module production date. The table below shows the relationship between the stored values and the production date. The Julian date value is transmitted to the main ECU during PSI5 initialization phase 2 in 10-bit mode, as described in Section 4.4.2.2. 3.1.5.6 User Configuration CRC (CRC_U[2:0]) The user configuration CRC bits contain the 3-bit CRC used for verification of the user programmable OTP array. Reference Section 3.2.2 for information regarding the CRC for the user programmable OTP array. 3.1.6 Status Check Register (SC) The status check register is a read-only register containing device status information. 3.1.6.1 Test Mode Flag (TM_B) The test mode bit is cleared if the device is in test mode. Programmed Value Decoded Value Julian Date Value YEAR[3:0] Year 0000 2009 0001001 • • • • • • • • • 1111 2024 0011000 MONTH[3:0] Month 0000 N/A 0000 0001 January 0001 • • • • • • • • • 1100 December 1100 • • • • • • • • • 1111 N/A N/A DAY[4:0] Day 00000 N/A 00000 00001 Day 1 00001 • • • • • • • • • 11111 Day 31 11111 Location Bit Address Register 7 6543210 $0C SC 0 TM_B RESERVED IDEN_B OC_INIT_B IDEF_B OFF_B TEMPF_B TM_B Operating Mode 0 Test Mode is active 1 Test Mode is not active |
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