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SC312XDP512F0MPVR датащи(PDF) 398 Page - Freescale Semiconductor, Inc |
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SC312XDP512F0MPVR датащи(HTML) 398 Page - Freescale Semiconductor, Inc |
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398 / 1348 page ![]() Chapter 9 Inter-Integrated Circuit (IICV2) Block Description MC9S12XDP512 Data Sheet, Rev. 2.21 398 Freescale Semiconductor 9.3.2 Register Descriptions This section consists of register descriptions in address order. Each description includes a standard register diagram with an associated figure number. Details of register bit and field function follow the register diagrams, in bit order. 9.3.2.1 IIC Address Register (IBAD) Read and write anytime This register contains the address the IIC bus will respond to when addressed as a slave; note that it is not the address sent on the bus during the address transfer. Register Name Bit 7 654321 Bit 0 IBAD R ADR7 ADR6 ADR5 ADR4 ADR3 ADR2 ADR1 0 W IBFD R IBC7 IBC6 IBC5 IBC4 IBC3 IBC2 IBC1 IBC0 W IBCR R IBEN IBIE MS/SL Tx/Rx TXAK 00 IBSWAI W RSTA IBSR R TCF IAAS IBB IBAL 0SRW IBIF RXAK W IBDR R D7 D6 D5 D4 D3 D2 D1 D0 W = Unimplemented or Reserved Figure 9-2. IIC Register Summary 76543210 R ADR7 ADR6 ADR5 ADR4 ADR3 ADR2 ADR1 0 W Reset 00000000 = Unimplemented or Reserved Figure 9-3. IIC Bus Address Register (IBAD) Table 9-1. IBAD Field Descriptions Field Description 7:1 ADR[7:1] Slave Address — Bit 1 to bit 7 contain the specific slave address to be used by the IIC bus module.The default mode of IIC bus is slave mode for an address match on the bus. 0 Reserved Reserved — Bit 0 of the IBAD is reserved for future compatibility. This bit will always read 0. |
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