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PC97338VLJ Datasheet(PDF) 62 Page - National Semiconductor (TI) |
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PC97338VLJ Datasheet(HTML) 62 Page - National Semiconductor (TI) |
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62 / 221 page  62 www.national.com 2.3.28 SCC2 Base Address High Byte Register (S2BAH), Index 47h This register holds the high address bits of SCC2’s base address. In Legacy mode, this register is ignored and the base address of SCC2 is determined by bits 4-7 of FAR register. This register may be modified only when SCC2 is dis- abled. Undefined value when out of reset. It is the software’s responsibility to configure all devic- es so as to avoid conflicts. FIGURE 30. S2BAH Register Bitmap 2.3.29 FDC Base Address Low Byte Register (FBAL), Index 48h This register holds the low address bits of the FDC’s base address. In Legacy mode, this register is ignored and the base address of the FDC is determined by bit 5 of the FER register. This register may be modified only when the FDC is disabled. Undefined value when out of reset. It is the software’s responsibility to configure all devic- es so as to avoid conflicts. FIGURE 31. FBAL Register Bitmap 2.3.30 FDC Base Address High Byte Register (FBAH,) Index 49h This register holds the high address bits of the FDC’s base address. In Legacy mode, this register is ignored and the base address of the FDC is determined by bit 5 of the FER register. This register may be modified only when the FDC is disabled. Undefined value when out of reset. It is the software’s responsibility to configure all devic- es so as to avoid conflicts. FIGURE 32. FBAH Register Bitmap Reserved Reserved A10 A11 A12 A13 A14 A15 Reserved Reserved Reserved A10 Reserved Reserved Reserved Reserved Address Length 7 654 32 10 Reset Required x x x x x x x x 11 Bits 16 bits CFG0 = 1 CFG0 = 0 (S2BAH) SCC2 Base Address Index 47h High Byte Register 76 543 21 0 Reset Required x x x x x x x x Reserved A3 A4 A5 A6 A7 A8 A9 (FBAL) FDC Base Address Index 48h Low Byte Register Reserved Reserved A10 A11 A12 A13 A14 A15 Reserved Reserved Reserved A10 Reserved Reserved Reserved Reserved Address Length 7 654 32 10 Reset Required x x x x x x x x 11 Bits 16 bits CFG0 = 1 CFG0 = 0 (FBAH) FDC Base Address Index 49h High Byte Register |
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