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74 Rabbit 3000 Microprocessor
Global Revision Register GREV 0x2F R 0xx00000
Port A Data Register PADR 0x30 R/W xxxxxxxx
Port B Data Register PBDR 0x40 R/W 00xxxxxx
Port B Data Direction Register PBDDR 0x47 W 11000000
Port C Data Register PCDR 0x50 R/W x0x1x1x1
Port C Function Register PCFR 0x55 W x0x0x0x0
Port D Data Register PDDR 0x60 R/W xxxxxxxx
Port D Control Register PDCR 0x64 W xx00xx00
Port D Function Register PDFR 0x65 W xxxxxxxx
Port D Drive Control Register PDDCR 0x66 W xxxxxxxx
Port D Data Direction Register PDDDR 0x67 W 00000000
Port D Bit 0 Register PDB0R 0x68 W xxxxxxxx
Port D Bit 1 Register PDB1R 0x69 W xxxxxxxx
Port D Bit 2 Register PDB2R 0x6A W xxxxxxxx
Port D Bit 3 Register PDB3R 0x6B W xxxxxxxx
Port D Bit 4 Register PDB4R 0x6C W xxxxxxxx
Port D Bit 5 Register PDB5R 0x6D W xxxxxxxx
Port D Bit 6 Register PDB6R 0x6E W xxxxxxxx
Port D Bit 7 Register PDB7R 0x6F W xxxxxxxx
Port E Data Register PEDR 0x70 R/W xxxxxxxx
Port E Control Register PECR 0x74 W xx00xx00
Port E Function Register PEFR 0x75 W 00000000
Port E Data Direction Register PEDDR 0x77 W 00000000
Port E Bit 0 Register PEB0R 0x78 W xxxxxxxx
Port E Bit 1 Register PEB1R 0x79 W xxxxxxxx
Port E Bit 2 Register PEB2R 0x7A W xxxxxxxx
Port E Bit 3 Register PEB3R 0x7B W xxxxxxxx
Port E Bit 4 Register PEB4R 0x7C W xxxxxxxx
Port E Bit 5 Register PEB5R 0x7D W xxxxxxxx
Port E Bit 6 Register PEB6R 0x7E W xxxxxxxx
Table 6-2. Rabbit Internal I/O Registers (continued)
Register Name Mnemonic I/O Address R/W Reset