mpc8250 Freescale Semiconductor, Inc, mpc8250 Datasheet - Page 4

• Manufacturer Part Number: mpc8250
• Description: Mpc8250 Powerquicc Ii Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

Features
4
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— Dedicated interface logic for SDRAM
CPU core can be disabled and the device can be used in slave mode to an external core
Communications processor module (CPM)
— Embedded 32-bit communications processor (CP) uses a RISC architecture for flexible support
— Interfaces to G2 core through on-chip 32-Kbyte dual-port RAM and DMA controller
— Serial DMA channels for receive and transmit on all serial channels
— Parallel I/O registers with open-drain and interrupt capability
— Virtual DMA functionality executing memory-to-memory and memory-to-I/O transfers
— Three fast communications controllers supporting the following protocols:
— One multichannel controller (MCC2)
— Four serial communications controllers (SCCs) identical to those on the MPC860, supporting
— Two serial management controllers (SMCs), identical to those of the MPC860
— One serial peripheral interface identical to the MPC860 SPI
— One inter-integrated circuit (I
— Up to four TDM interfaces
for communications protocols
– 10/100-Mbit Ethernet/IEEE 802.3 CDMA/CS interface through media independent
– Transparent
– HDLC—Up to T3 rates (clear channel)
– Handles 128 serial, full-duplex, 64-Kbps data channels. The MCC can be split into four
– Almost any combination of subgroups can be multiplexed to single or multiple TDM
the digital portions of the following protocols:
– Ethernet/IEEE 802.3 CDMA/CS
– HDLC/SDLC and HDLC bus
– Universal asynchronous receiver transmitter (UART)
– Synchronous UART
– Binary synchronous (BISYNC) communications
– Transparent
– Provide management for BRI devices as general circuit interface (GCI) controllers in time-
– Transparent
– UART (low-speed operation)
– Microwire compatible
– Multiple-master, single-master, and slave modes
– Supports one group of four TDM channels
interface (MII)
subgroups of 32 channels each.
interfaces up to four TDM interfaces per MCC
division-multiplexed (TDM) channels
MPC8250 Hardware Specifications, Rev. 1
2
C) controller (identical to the MPC860 I
2
C controller)
Freescale Semiconductor