Introduction
MOTOROLA
MPC823e REFERENCE MANUAL
1-3
INTRODUCTION
1
• Two Serial Communication Controllers
❏
Ethernet/IEEE 802.3 Support (10Mbps and Full-Duplex Operation)
❏
GeoPort Support
❏
HDLC Bus Implements an HDLC-Based Local Area Network
❏
Universal Asynchronous Receiver Transmitter (UART)
❏
Synchronous UART
❏
Serial Infrared (IrDA) Supporting a Maximum of 4Mbps (SCC2 only)
❏
Totally Transparent. Frame Based with Optional Cyclical Redundancy Check
❏
Maximum Serial Data Rate of 66Mbps at 75MHz
• One Dedicated High-Speed Serial Channel for the Universal Serial Bus (USB)
❏
Supports USB Slave Mode At a Maximum of 12Mbps With Four USB Endpoints
(One for Control and Three for Data)
• Two Serial Management Controllers with Externally Accessible Pins
❏
Provides Management for BRI Devices as General Circuit Interface Control
Functions in TDM Channels
❏
Low-Speed UART, Transparent and CODEC Interfaces
• One Serial Peripheral Interface
❏
Supports Master and Slave Modes
❏
Supports Multimaster Operation on the Same Bus
• One I
2
C
®
(Microwire-Compatible) Interface that Supports Master and Slave Modes
• Serial Interface with a Time-Slot Assigner
❏
Allows Serial Communication Controllers and Serial Management Controllers to be
Used in Multiplexed and/or Nonmultiplexed Operation
❏
Supports T1, CEPT, PCM Highway, ISDN Basic Rate, ISDN Primary Rate,
User-Defined
❏
1- or 8-Bit Resolution
❏
Allows Independent Transmit and Receive Routing, Frame Synchronization, and
Dynamic Clocking Modification Capability
❏
Eight Programmable Strobes Can be Used to Generate Wave Patterns
❏
Software-Configurable for Internal Interconnection of CPM Serial Channels
• Four Independent 16-Bit Timers That can be Configured as Two 32-Bit Timers.
• Interrupts
❏
Seven External Interrupt Request (IRQ) Lines
❏
One Nonmaskable Interrupt
❏
Twelve Port Pins with Interrupt Capability
❏
Ten Internal Interrupt Sources
❏
Programmable Highest Priority Request
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