Cirrus Logic EP93 Series User Manual page 34

Introduction
EP93xx User's Guide
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1
• Touch Screen interface
- 5-ADC in EP9301 and 9302 only
- 8-Wire Touch Screen/ADC in EP9307, 9312, and 9315 only
• SPI port
• AC '97 interface
2
• I S interface with up to 6 channels
• 8x8 Matrix keypad scanner (in EP9307, EP9312, and EP9315 only)
• PCMCIA Interface supporting 8-bit or 16-bit PCMCIA (PC Card) devices in EP9315 only
• External Memory Options
• 16-bit SDRAM interface (up to 4 banks) in EP9301 and 9302 only
• 32-bit SDRAM interface (up to 4 banks) in EP9307, 9312, and 9315 only
• 16/8-bit SRAM/Flash/ROM interface in EP9301 and 9302 only
• 32/16/8-bit SRAM/Flash/ROM interface in EP9307, 9312, and 9315 only
• Serial Flash interface
• Internal Peripherals
• Real-Time clock with software trim
• 12 DMA channels for data transfer to maximize system performance
• Boot ROM
• Dual PLLs
• Watchdog timer
• Two general purpose 16-bit timers
• General purpose 32-bit timer
• 40-bit debug timer
• Standard General-Purpose I/Os (GPIOs), no interrupts:
• 18 in EP9301 and 9302 only
• 30 in EP9307 only
• 31 in EP9312 and 9315 only
• Enhanced General-Purpose I/Os (EGPIOs) plus Port F GPIOs can generate interrupts:
• 19 in EP9301, 9302 only
• 18 in EP9307 only
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Copyright 2007 Cirrus Logic
DS785UM1