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数据搜索系统，热门电子元器件搜索 |
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数据搜索系统，热门电子元器件搜索 |
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M68HC08 数据表(PDF) 39 Page - Freescale Semiconductor, Inc |
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M68HC08 数据表(HTML) 39 Page - Freescale Semiconductor, Inc |
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39 / 288 page  Memory Map MC68HC908BD48 — Rev. 2.1 Data Sheet Freescale Semiconductor Memory Map 39 Addr. Register Name Bit 7 654321 Bit 0 $0000 Port A Data Register (PTA) Read: PTA7 PTA6 PTA5 PTA4 PTA3 PTA2 PTA1 PTA0 Write: Reset: Unaffected by reset $0001 Port B Data Register (PTB) Read: PTB7 PTB6 PTB5 PTB4 PTB3 PTB2 PTB1 PTB0 Write: Reset: Unaffected by reset $0002 Port C Data Register (PTC) Read: 0 0 PTC5 PTC4 PTC3 PTC2 PTC1 PTC0 Write: Reset: Unaffected by reset $0003 Port D Data Register (PTD) Read: 0 PTD6 PTD5 PTD4 PTD3 PTD2 PTD1 PTD0 Write: Reset: Unaffected by reset $0004 Data Direction Register A (DDRA) Read: DDRA7 DDRA6 DDRA5 DDRA4 DDRA3 DDRA2 DDRA1 DDRA0 Write: Reset: 00000000 $0005 Data Direction Register B (DDRB) Read: DDRB7 DDRB6 DDRB5 DDRB4 DDRB3 DDRB2 DDRB1 DDRB0 Write: Reset: 00000000 $0006 Data Direction Register C (DDRC) Read: 0 0 DDRC5 DDRC4 DDRC3 DDRC2 DDRC1 DDRC0 Write: Reset: 00000000 $0007 Data Direction Register D (DDRD) Read: 0 DDRD6 DDRD5 DDRD4 DDRD3 DDRD2 DDRD1 DDRD0 Write: Reset: 00000000 $0008 Port E Data Register (PTE) Read: 00000 PTE2 PTE1 PTE0 Write: Reset: Unaffected by reset $0009 Data Direction Register E (DDRE) Read: 00000 DDRE2 DDRE1 DDRE0 Write: Reset: 00000000 = Unimplemented R = Reserved Figure 2-2. Control, Status, and Data Registers (Sheet 1 of 12) |
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