
EP7309/11/12 User’s Manual - DS508UM4 v
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
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