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ST92F124 데이터시트(PDF) 304 Page - STMicroelectronics |
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ST92F124 데이터시트(HTML) 304 Page - STMicroelectronics |
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304 / 429 page ![]() 304/429 J1850 Byte Level Protocol Decoder (JBLPD) J1850 BYTE LEVEL PROTOCOL DECODER (Cont’d) 10.9.7 Register Description The JBLPD peripheral uses 48 registers that are mapped in a single page of the ST9 register file. Twelve registers are mapped from R240 (F0h) to R251 (FBh): these registers are usually used to control the JBLPD. See Section 10.9.7.1 Un- Stacked Registers for a detailed description of these registers. Thirty-six registers are mapped from R252 (FCh) to R255 (FFh). This is obtained by creating 9 sub- pages, each containing 4 registers, mapped in the same register addresses; 4 bits (RSEL[3:0]) of a register (OPTIONS) are used to select the current sub-page. See Section 10.9.7.2 Stacked Regis- ters section for a detailed description of these reg- isters. The ST9 Register File page used is 23 (17h). NOTE: Bits marked as “Reserved” should be left at their reset value to guarantee software compatibil- ity with future versions of the JBLPD. Figure 141. JBLPD Register Map STATUS CLKSEL R240 (F0h) R241 (F1h) R242 (F2h) R243 (F3h) R244 (F4h) R245 (F5h) R246 (F6h) R247 (F7h) R248 (F8h) R249 (F9h) R250 (FAh) R251 (FBh) R252 (FCh) R253 (FDh) R254 (FEh) R255 (FFh) TXDATA RXDATA TXOP CONTROL PADDR ERROR IVR PRLR IMR OPTIONS CREG0 CREG1 CREG2 CREG3 RDAPR RDCPR TDAPR TDCPR FREG0 FREG31 FREG30 FREG29 FREG28 FREG1 FREG2 FREG3 FREG4 FREG5 FREG6 FREG7 FREG10 FREG11 FREG9 FREG8 FREG12 FREG13 FREG15 FREG14 FREG16 FREG17 FREG18 FREG19 FREG20 FREG21 FREG22 FREG23 FREG24 FREG25 FREG26 FREG27 9 |
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