Cirrus Logic EP73xx - Manual (Page 6)

EP7309/11/12 User’s Manual - DS508UM4 v
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Copyright Cirrus Logic, Inc. 2003
Contents
Chapter 6. Processor Support
Introduction ....................................................................................................................................................... 6-1
Features .............................................................................................................................................................. 6-1
Operational Overview...................................................................................................................................... 6-1
Internal Boot Mode .................................................................................................................................... 6-2
External Boot Mode ................................................................................................................................... 6-2
Endianess .................................................................................................................................................... 6-4
Chapter 7. SDRAM Controller
Introduction ....................................................................................................................................................... 7-1
Features .............................................................................................................................................................. 7-1
SDRAM Register List........................................................................................................................................ 7-1
Programming Example .................................................................................................................................... 7-2
Operational Overview...................................................................................................................................... 7-2
System Initialization .................................................................................................................................. 7-2
Byte Masks .................................................................................................................................................. 7-3
SDRAM Register Descriptions ........................................................................................................................ 7-3
SDRAM Control Register (SDCONF) ................................................................................................ 7-3
SDRAM Refresh Period Register (SDRFPR) .................................................................................... 7-4
Chapter 8. SRAM/Expansion Bus Controller
Introduction ....................................................................................................................................................... 8-1
Features .............................................................................................................................................................. 8-1
SRAM / Expansion Bus Register List ............................................................................................................ 8-1
Programming Example .................................................................................................................................... 8-1
Operational Overview...................................................................................................................................... 8-2
SRAM / Expansion Bus Register Descriptions ............................................................................................ 8-3
Memory Configuration Register 1 (MEMCFG1)................................................................................. 8-3
Memory Configuration Register 2 (MEMCFG2)................................................................................. 8-5
Chapter 9. LCD Interface
Introduction ....................................................................................................................................................... 9-1
Features .............................................................................................................................................................. 9-1
LCD Register List .............................................................................................................................................. 9-1
Programming Example .................................................................................................................................... 9-2
Operational Overview...................................................................................................................................... 9-2
LCD Controller External Memory........................................................................................................... 9-2
LCD DMA Controller................................................................................................................................ 9-3
Gray Scale ................................................................................................................................................... 9-4
Hardware Interface.................................................................................................................................... 9-6
Color LCDs ................................................................................................................................................. 9-6
LCD Register Descriptions .............................................................................................................................. 9-7
LCD Control Register (LCDCON) ...................................................................................................... 9-7
LCD Palette Registers ....................................................................................................................... 9-8
LCD Frame Buffer Start Address (FBADDR)..................................................................................... 9-9
Chapter 10. Keyboard Interface
Introduction ..................................................................................................................................................... 10-1
Features ............................................................................................................................................................ 10-1
Register List ..................................................................................................................................................... 10-1
Programming Example .................................................................................................................................. 10-1
Operational Overview.................................................................................................................................... 10-2
Keyboard Interrupt Matrix..................................................................................................................... 10-2