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SA-1100 Developer’s Manual 1-3
Introduction
Table 1-3. Changes to the SA-1100 Core from the SA-110
• Data cache reduced from 16 Kbyte to
8 Kbyte
• Interrupt vector address adjust capability
• Read buffer (nonblocking)
• Minicache for alternate data caching
• Hardware breakpoints
• Memory-management unit (MMU)
enhancements
• Process ID mapping
Table 1-4. Additional Features Built into SA-1100 Chipset
• Memory controller supporting ROM,
Flash, EDO, standard DRAM, and SRAM
• LCD controller
— 1-, 2-, or 4-bit gray-scale levels
— 8-, 12-, or 16-bit color levels
• Serial communications module supporting
SDLC
• 230-Kbps UART
• Touch-screen, audio, telecom port
• Infrared data (IrDA) serial port
— 115 Kbps, 4 Mbps
• Six-channel DMA controller
• Integrated two-slot PCMCIA controller
• Twenty-eight general-purpose I/O ports
• Real-time clock with interrupt capability
• On-chip oscillators for clock sources
• Interrupt controller
• Power-management features
— Normal (full-on) mode
— Idle (power-down) mode
— Sleep (power-down) mode
• Four general-purpose interruptible timers
• 12-Mbps USB device controller
• Synchronous serial port (UCB1100,
UCB1200, SPI, TI, Wire)