MPC8248 Freescale Semiconductor, Inc, MPC8248 Datasheet - Page 6

• Manufacturer Part Number: MPC8248
• Description: Mpc8248 Powerquicc Ii Integrated Communications Processor
• Manufacturer: Freescale Semiconductor, Inc

Overview
6
•
— Two serial management controllers (SMCs), identical to those of the MPC860
— One serial peripheral interface identical to the MPC860 SPI
— One I
— Up to two TDM interfaces
— Eight independent baud rate generators and 14 input clock pins for supplying clocks to FCC,
— Four independent 16-bit timers that can be interconnected as two 32-bit timers
PCI bridge
— PCI Specification revision 2.2-compliant and supports frequencies up to 66 MHz
— On-chip arbitration
— Support for PCI to 60x memory and 60x memory to PCI streaming
— PCI host bridge or peripheral capabilities
— Includes four DMA channels for the following transfers:
– Ethernet/IEEE 802.3 CDMA/CS
– HDLC/SDLC and HDLC bus
– Universal asynchronous receiver transmitter (UART)
– Synchronous UART
– Binary synchronous (BiSync) communications
– Transparent
– QUICC multichannel controller (QMC) up to 64 channels
– SCC3 in NMSI mode is not usable when USB is enabled.
– Provides management for BRI devices as general-circuit interface (GCI) controllers in
– Transparent
– UART (low-speed operation)
– Microwire compatible
– Multiple-master, single-master, and slave modes
– Supports one group of two TDM channels
– 1024 bytes of SI RAM
SCC, SMC, and USB serial channels
– PCI-to-60x to 60x-to-PCI
time-division-multiplexed (TDM) channels
• Independent transmit and receive routing, frame synchronization.
• Serial-multiplexed (full-duplex) input/output 2048-, 1544-, and 1536-Kbps PCM highways
• Compatible with T1/DS1 24-channel and CEPT E1 32-channel PCM highway, ISDN basic rate,
• Subchanneling on each time slot.
• Independent transmit and receive routing, frame synchronization and clocking
• Concatenation of any not necessarily consecutive time slots to channels independently for Rx/Tx
• Supports H1,H11, and H12 channels
• Allows dynamic allocation of channels
2
C controller (identical to the MPC860 I
ISDN primary rate, and user defined.
MPC8272 PowerQUICC II™ Family Hardware Specifications, Rev. 1.5
2
C controller)
Freescale Semiconductor