Document Number: MPC850EC Freescale Semiconductor Rev. 2, 07/2005 Technical Data MPC850 PowerQUICC Integrated Communications Processor Hardware Specifications Contents This document contains detailed information on power 1. Overview . 1 considerations, AC/DC electrical characteristics, and AC 2. Features 3 timing specifications for revision A,B, and C of the MPC850 3. Electrical and Thermal Characteristics 7 Family. 4. Thermal Characteristics . 8 5. Power Considerations . 9 6. Bus Signal Timing 10 7. IEEE 1149.1 Electrical Specifications . 39 1Overview 8. CPM Electrical Characteristics . 41 9. Mechanical Data and Ordering Information . 63 The MPC850 is a versatile, one-chip integrated 10. Document Revision History . 68 microprocessor and peripheral combination that can be used in a variety of controller applications, excelling particularly in communications and networking products. The MPC850, which includes support for Ethernet, is specifically designed for cost-sensitive, remote-access, and telecommunications applications. It is provides functions similar to the MPC860, with system enhancements such as universal serial bus (USB) support and a larger (8-Kbyte) dual-port RAM. In addition to a high-performance embedded MPC8xx core, the MPC850 integrates system functions, such as a versatile memory controller and a communications processor module (CPM) that incorporates a specialized, independent RISC communications processor (referred to as the CP). This separate processor off-loads peripheral tasks from the embedded MPC8xx core. Freescale Semiconductor, Inc., 2005. All rights reserved.Overview The CPM of the MPC850 supports up to seven serial channels, as follows: One or two serial communications controllers (SCCs). The SCCs support Ethernet, ATM (MPC850SR and MPC850DSL), HDLC and a number of other protocols, along with a transparent mode of operation. One USB channel Two serial management controllers (SMCs) 2 One I C port One serial peripheral interface (SPI). Table 1 shows the functionality supported by the members of the MPC850 family. Table 1. MPC850 Functionality Matrix Number of Multi-channel Number of Ethernet Part SCCs ATM Support USB Support HDLC PCMCIA Slots Support Supported Support Supported MPC850 1 Yes - Yes - 1 MPC850DE 2 Yes - Yes - 1 MPC850SR 2 Yes Yes Yes Yes 1 MPC850DSL 2 Yes Yes Yes No 1 Additional documentation may be provided for parts listed in Table 1. MPC850 PowerQUICC Integrated Communications Processor Hardware Specifications, Rev. 2 2 Freescale Semiconductor