LH79532

DESCRIPTION

The LH79520, powered by an ARM720T, is a complete System-on-Chip with a high level of integration to satisfy a wide range of requirements and expectations. The LH79520 combines a 32-bit ARM720T RISC, Color LCD controller, Cache, Local SRAM, a number of essential peripherals such as Direct Memory Access, Serial and Parallel Interfaces, Infrared support, Timers, Real Time Clock, Watchdog Timer, Pulse Width Modu lators, and an on-chip Phase Lock Loop. Debug is made simple by JTAG support

FEATURES

• Highly Integrated System-on-Chip
• High Performance (77.4144 MHz CPU Speed)
• ARM720T™ RISC Core
– 32-bit ARM7TDMI™ RISC Core
– 8 kB Cache
– MMU (Windows CE™ Enabled)
– Write Buffer
• 32 kB On-Chip SRAM
• Flexible, Programmable Memory Interface
– SDRAM Interface
– 15-bit External Address Bus
– 32-bit External Data Bus
– Two Segments (128 MB each)
– SRAM/Flash/ROM Interface
– 26-bit External Address Bus
– 32-bit External Data Bus
– Seven Segments (64 MB Each)
• Multi-stream DMA Controller
– Four 32-bit Burst-based Data Streams
• Clock and Power Management
– 32.768 kHz Oscillator for Real Time Clock
– 14.7456 MHz Oscillator and On-chip PLL for CPU and Bus Clocks
– Active, Standby, Sleep and Stop Power Modes
– Externally-supplied Clock Options
• Low Power Modes
– Active Mode: 55 mA (MAX.)
– Standby Mode: 35 mA (MAX.)
– Sleep Mode: 5.5 mA (MAX.)
– Stop Mode 2: 18 µA
• Watchdog Timer
• Vectored Interrupt Controller
– 16 Standard and 16 Vectored IRQ Interrupts
– Hardware Interrupt Priority
– Software Interrupts
– FIQ Fast Interrupts
• Three UARTs
– 16-byte FIFOs for Rx and Tx
– IrDA SIR Support
– Supports Data Rates Up to 460.8 kb/s
• Two 16-bit Pulse Width Modulators
• Two Dual Channel Timer Modules
• Real Time Clock
– 32-bit Up-counter with Programmable Load
– Programmable 32-bit Match Compare Register

• 64 Programmable General Purpose I/O Signals

– Multiplexed with Peripheral I/O Signals
• Programmable Color LCD Controller
– Up to 800 × 600 Resolution
– Supports STN, Color STN, AD-TFT, TFT
– Supports 15 Shades of Gray
– TFT: Supports 64 k Direct Colors or 256 Colors selected from a Palette of 64,000 Colors
– Color STN: Supports 3,375 Direct Colors or 256 Colors Selected from a Palette of 3,375 Colors
• Synchronous Serial Port
– Supports Data Rates Up to 1.8452 Mb/s
– Compatible with Common Interface Schemes
– Motorola SPI™
– National Semiconductor MICROWIRE™
– Texas Instruments SSI
• JTAG Debug Interface and Boundary Scan
• 5 V Tolerant Digital I/O
– XTALIN and XTAL32IN inputs are 1.8 V ± 10 %