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H8S2245 数据表(PDF) 12 Page - Renesas Technology Corp |
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H8S2245 数据表(HTML) 12 Page - Renesas Technology Corp |
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12 / 818 page  Rev.3.00 Mar. 26, 2007 Page xii of xlii REJ09B0355-0300 Item Page Revision (See Manual for Details) 8.2.2 Register Configuration 214 Port 1 Data Direction Register (P1DDR) Description amended ... an undefined value will be read. This register is a write-only register, and cannot be written by bit manipulation instruction. For details, see section 2.10.4, Access Methods for Registers with Write-Only Bits. P1DDR is initialized to H'00 ... 8.3.2 Register Configuration 225 Port 2 Data Direction Register (P2DDR) Description amended ... makes the pin an input pin. This register is a write-only register, and cannot be written by bit manipulation instruction. For details, see section 2.10.4, Access Methods for Registers with Write-Only Bits. P2DDR is initialized to H'00 ... 8.4.2 Register Configuration 230 Port 3 Data Direction Register (P3DDR) Description amended ... an undefined value will be read. P3DDR cannot be modified. Setting a P3DDR bit to 1 ... makes the pin an input pin. This register is a write-only register, and cannot be written by bit manipulation instruction. For details, see section 2.10.4, Access Methods for Registers with Write-Only Bits. P3DDR is initialized to H'00 ... 8.5.2 Register Configuration 235 Port 4 Register (PORT4) Description amended PORT4 is an 8-bit read-only register that shows port 4 pin states. PORT4 cannot be modified. Bits 7 to 4 are reserved; ... 8.6.2 Register Configuration 237 Port 5 Data Direction Register (P5DDR) Description amended ... an undefined value will be read. P5DDR cannot be modified. Setting a P5DDR bit to 1 ... makes the pin an input pin. This register is a write-only register, and cannot be written by bit manipulation instruction. For details, see section 2.10.4, Access Methods for Registers with Write-Only Bits. P5DDR is initialized to H'0 ... |
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