| Datenblatt-Suchmaschine für elektronische Bauteile |
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H8SX/1663 Datenblatt(PDF) 450 Page - Renesas Technology Corp |
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H8SX/1663 Datenblatt(HTML) 450 Page - Renesas Technology Corp |
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450 / 1158 page ![]() Section 8 Data Transfer Controller (DTC) Rev.1.00 Jun. 07, 2006 Page 398 of 1102 REJ09B0294-0100 8.2.1 DTC Mode Register A (MRA) MRA selects DTC operating mode. MRA cannot be accessed directly by the CPU. Bit Bit Name Initial Value R/W 7 MD1 Undefined 6 MD0 Undefined 5 Sz1 Undefined 4 Sz0 Undefined 3 SM1 Undefined 2 SM0 Undefined 1 Undefined 0 Undefined Bit Bit Name Initial Value R/W Description 7 6 MD1 MD0 Undefined Undefined DTC Mode 1 and 0 Specify DTC transfer mode. 00: Normal mode 01: Repeat mode 10: Block transfer mode 11: Setting prohibited 5 4 Sz1 Sz0 Undefined Undefined DTC Data Transfer Size 1 and 0 Specify the size of data to be transferred. 00: Byte-size transfer 01: Word-size transfer 10: Longword-size transfer 11: Setting prohibited 3 2 SM1 SM0 Undefined Undefined Source Address Mode 1 and 0 Specify an SAR operation after a data transfer. 0x: SAR is fixed (SAR writeback is skipped) 10: SAR is incremented after a transfer (by 1 when Sz1 and Sz0 = B'00; by 2 when Sz1 and Sz0 = B'01; by 4 when Sz1 and Sz0 = B'10) 11: SAR is decremented after a transfer (by 1 when Sz1 and Sz0 = B'00; by 2 when Sz1 and Sz0 = B'01; by 4 when Sz1 and Sz0 = B'10) 1, 0 Undefined Reserved The write value should always be 0. [Legend] X: Don't care |
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