Features - Motorola MC68302 User Manual

The MC68302 can also be used in applications such as board-level industrial
controllers performing real-time control applications with a local control bus
and an X.25 packet network connection. Such a system provides the real-
time response to a demanding peripheral while permitting remote monitoring
and communication through an X.25 packet network.
1.2 FEATURES
The features of the IMP are as follows:
• On-Chip HCMOS MC68000/MC68008 Core Supporting a 16- or 8-Bit
M68000 Family System
• SIB Including:
Independent Direct Memory Access (IDMA) Controller with Three
Handshake Signals: OREO, DACK, and DONE.
Interrupt Controller with Two Modes of Operation
Parallel Input/Output
(110)
Ports, Some with Interrupt Capability
On-Chip 1152-Byte Dual-Port RAM
Three Timers Including a Watchdog Timer
Four Programmable Chip-Select Lines with Wait-State Generator Logic
Programmable Address Mapping of the Dual-Port RAM and IMP
Registers
On-Chip Clock Generator with Output Signal
System Control
Bus Arbitration Logic with Low-Interrupt Latency Support
System Status and Control Logic
Disable CPU Logic (M68000)
Hardware Watchdog
Low-Power (Standby) Modes
FrP.P.7P. C:nntrnl fnr nAh11nninn
• CP Including:
MOTOROLA
Main Controller (RISC Processor)
Three Independent Full-Duplex Serial Communications Controllers
(SCCs) Supporting Various Protocols:
High-Level/Synchronous Data Link Control (HDLC/SDLC)
Universal Asynchronous Receiver Transmitter (UART)
Binary Synchronous Communication (BISYNC)
Synchronous/Asynchronous Digital Data Communications Message
Protocol (ODCMP)
Transparent Modes
V.110 Rate Adaption
Six Serial OMA Channels for the Three SCCs
MC68302 USER'S MANUAL 1-3