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Freescale Semiconductor, Inc. Freescale Semiconductor, Inc... MSC8102 Dictionary MOTOROLA requestor An external peripheral, an internal peripheral, or an internal request generated by the DMA FIFO. A peripheral interfaces with the DMA by placing a request for service. The request can be external or internal, depending on its origin. reset A means to bring a device and its components to a known state by setting the registers and control bits to predetermined values and signaling execution to start at a specified address. RFCR Receive Function Code Register. RFTHR Received frames threshold parameter. RIBC Rx internal byte count. RISC Reduced instruction set computing. RM Resource management. RMW Read-modify-write. RQNUM Requestor number. RS-232 with modem controls An ANSI standard specifying three interfaces: electrical, functional, and mechanical. The RS232 standard is typically used to communicate between computers, terminals, and modems. All PCs support RS-232, typically through a DB9 connector, as specified by ANSI. The MSC8102 supports TXD, RXD, RTS, CTS, and CD signals. RS-232 with no modem controls The MSC8102 SMC1-2 interface supports TXD, RXD, and SMSYN signals. The SMC interface does not support modem control signals, and the data rates are not as fast as those of the SCC interface. RSCFG Reset Configuration Registers (host-side). RSR Reset Status Register. RSTATE Receiver state. RSTCONF Reset configuration signal. RSTRT Receive start signal. MSC8102 User’s Guide For More Information On This Product, Go to: www.freescale.com A-21