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ATtiny167-ESSZ датащи(PDF) 178 Page - ATMEL Corporation |
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ATtiny167-ESSZ датащи(HTML) 178 Page - ATMEL Corporation |
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178 / 282 page ![]() 178 7728D–AVR–07/09 ATtiny87/ATtiny167 Frame identifiers 60 (0x3C) to 61 (0x3D) shall always use classic checksum. 15.5.13 Interrupts As shown in Figure 15-13 on page 178, the four communication flags of the LINSIR register are combined to drive two interrupts. Each of these flags have their respective enable interrupt bit in LINENIR register. (see Section 15.5.8 “xxOK Flags” on page 175 and Section 15.5.9 “xxERR Flags” on page 176). Figure 15-13. LIN Interrupt Mapping 15.5.14 Message Filtering Message filtering based upon the whole identifier is not implemented. Only a status for frame headers having 0x3C, 0x3D, 0x3E and 0x3F as identifier is available in the LINSIR register. CHECKSUM 255 unsigned char DATA n 0 n ∑ ⎝⎠ ⎜⎟ ⎜⎟ ⎛⎞ unsigned char DATA n 0 n ∑ ⎝⎠ ⎜⎟ ⎜⎟ ⎛⎞ 8 » ⎝⎠ ⎜⎟ ⎜⎟ ⎛⎞ + ⎝⎠ ⎜⎟ ⎜⎟ ⎛⎞ – = LIDOK LINSIR.2 LTXOK LINSIR.1 LRXOK LINSIR.0 LABORT LINERR.7 LTOERR LINERR.6 LOVERR LINERR.5 LERR LINSIR.3 LIN TC LENERR LFERR LINERR.4 LSERR LINERR.3 LPERR LINERR.2 LCERR LINERR.1 LBERR LINERR.0 LIN ERR LENIDOK LINENIR.2 LENTXOK LINENIR.1 LENRXOK LINENIR.0 LINENIR.3 Table 15-4. Frame Status LIDST[2..0] Frame Status 0xx b No specific identifier 100 b 60 (0x3C) identifier 101 b 61 (0x3D) identifier 110 b 62 (0x3E) identifier 111 b 63 (0x3F) identifier |
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