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H8SX1663 数据表(PDF) 119 Page - Renesas Technology Corp |
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H8SX1663 数据表(HTML) 119 Page - Renesas Technology Corp |
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119 / 1158 page ![]() Section 3 MCU Operating Modes Rev.1.00 Jun. 07, 2006 Page 67 of 1102 REJ09B0294-0100 Bit Bit Name Initial Value R/W Descriptions 15 MDS7 Undefined* R Indicates the value set by mode pin (MD3). When MDCR is read, the input level on the MD3 pin is latched. This latching is released by a reset. 14 13 12 1 0 1 R R R Reserved These are read-only bits and cannot be modified. 11 10 9 8 MDS3 MDS2 MDS1 MDS0 Undefined* Undefined* Undefined* Undefined* R R R R Mode Select 3 to 0 These bits indicate the operating mode selected by the mode pins (MD2 to MD0) (see table 3.2). When MDCR is read, the signal levels input on pins MD2 to MD0 are latched into these bits. These latches are released by a reset. 7 6 5 4 3 2 1 0 Undefined* 1 0 1 Undefined* Undefined* Undefined* Undefined* R R R R R R R R Reserved These are read-only bits and cannot be modified. Note: * Determined by pins MD3 to MD0. Table 3.3 Settings of Bits MDS3 to MDS0 Mode Pins MDCR MCU Operating Mode MD2 MD1 MD0 MDS3 MDS2 MDS1 MDS0 2 0 1 0 1 1 0 0 4 1 0 0 0 0 1 0 5 1 0 1 0 0 0 1 6 1 1 0 0 1 0 1 7 1 1 1 0 1 0 0 |
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