Freescale Semiconductor MPC850 Operation & User’s Manual

377, Chapter 13. External Bus Interface Bus Operations Figure 13-25. Termination Signals Protocol Basic Connection Figure 13-26. Termination Signals Protocol Timing Diagram 13.4.9 Memory Reservation The MPC850 memory reservation protocol supports multilevel bus structures. For each local bus,…

1076, MPC850 Family User’s Manual Bus Utilization To summarize, the architecture of the MPC850 allows the serial channels to handle high-speed bursts of data for short periods of time subject to their internal FIFO sizes. If transfers are sufficiently short, and if serial clocks are turned…

734, MPC850 Family User’s Manual SCC Status Registers (SCCS) 26.15 SCC Status Registers (SCCS) The SCC status (SCCS) register allows real-time monitoring of RXD. The real-time status of CTS and CD are part of the port C parallel I/O. Table 26-14 describes SCCS fields. 26.16 Programming …

80, Freescale Semiconductor MPC850 MPC850 Family User’s Manual REG[FIELD] Abbreviations or acronyms for registers or buffer descriptors are shown in uppercase text. Specific bits, fields, or numerical ranges appear in brackets. For example, MSR[LE] refers to the little-endian mode enable bit in the machine…

378, MPC850 Family User’s Manual Bus Operations reservation loss on a remote bus only when it has issued a STWCX cycle to that address. That is, the reservation loss indication comes as part of the STWCX cycle, which avoids the need for fast memory reservation loss indication signals be…

371, Chapter 13. External Bus Interface Bus Operations Figure 13-23. Bus Arbitration Timing Diagram The MPC850 can be configured at system reset to use the internal bus arbiter. In this case, the MPC850 is parked on the bus. Section 10.4.2, “SIU Module Configuration Register (SIUMCR),” describe…