MPC866PCZP100A datasheet(4/96 Pages) FREESCALE

4 / 96 page

MPC866/MPC859 Hardware Specifications, Rev. 2

Freescale Semiconductor

Features

•

Interrupts

— Seven external interrupt request (IRQ) lines

— Twelve port pins with interrupt capability

— The MPC866P and MPC866T have 23 internal interrupt sources; the MPC859P, MPC859T, and

MPC859DSL have 20 internal interrupt sources.

— Programmable priority between SCCs (MPC866P and MPC866T)

— Programmable highest priority request

•

Communications processor module (CPM)

— RISC controller

— Communication-specific commands (for example, GRACEFUL STOP TRANSMIT, ENTER HUNT MODE, and

RESTART TRANSMIT

)

— Supports continuous mode transmission and reception on all serial channels

— Up to 8-Kbytes of dual-port RAM

— MPC866P and MPC866T have 16 serial DMA (SDMA) channels; MPC859P, MPC859T, and

MPC859DSL have 10 serial DMA (SDMA) channels.

— Three parallel I/O registers with open-drain capability

•

Four baud rate generators

— Independent (can be connected to any SCC or SMC)

— Allow changes during operation

— Autobaud support option

•

MPC866P and MPC866T have four SCCs (serial communication controller); MPC859P, MPC859T, and

MPC859DSL have one SCC; and SCC1 on MPC859DSL supports Ethernet only.

— Serial ATM capability on all SCCs

— Optional UTOPIA port on SCC4

— Ethernet/IEEE 802.3 optional on SCC1–4, supporting full 10-Mbps operation

— HDLC/SDLC

— HDLC bus (implements an HDLC-based local area network (LAN))

— Asynchronous HDLC to support PPP (point-to-point protocol)

— AppleTalk

— Universal asynchronous receiver transmitter (UART)

— Synchronous UART

— Serial infrared (IrDA)

— Binary synchronous communication (BISYNC)

— Totally transparent (bit streams)

— Totally transparent (frame based with optional cyclic redundancy check (CRC)

•

Two SMCs (serial management channels) (MPC859DSL has one SMC (SMC1) for UART.)

— UART

— Transparent

— General circuit interface (GCI) controller

— Can be connected to the time-division multiplexed (TDM) channels

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