Table of Contents1. GENERAL DESCRIPTION......................................................................................................... 6 FEATURES................................................................................................................................. 6 PIN DIAGRAM.......................................................................................................................... 13 PIN ASSIGNMENT................................................................................................................... 14 PIN DESCRIPTION................................................................................................................... 20 BLOCK DIAGRAM.................................................................................................................... 33 FUNCTIONAL DESCRIPTION................................................................................................. 7.2 ARM7TDMI CPU CORE............................................................................................... 34 System Manager........................................................................................................... 35

Overview........................................................................................................................35 System Memory Map......................................................................................................35 Address Bus Generation................................................................................................38 Data Bus Connection with External Memory..................................................................38 Bus Arbitration................................................................................................................47 Power management.......................................................................................................48 Power-On Setting...........................................................................................................50 System Manager Control Registers Map........................................................................51 EBI Overview..................................................................................................................65 SDRAM Controller..........................................................................................................65 EBI Control Registers Map.............................................................................................69 On-Chip RAM.................................................................................................................87 Non-Cacheable Area......................................................................................................87 Instruction Cache............................................................................................................88 Data Cache....................................................................................................................90 Write Buffer....................................................................................................................92 Cache Control Registers Map.........................................................................................92 EMC Functional Description...........................................................................................99 EMC Register Mapping................................................................................................109 GDMA Functional Description......................................................................................162 GDMA Register Map....................................................................................................163 USB Host Functional Description.................................................................................172 USB Host Controller Registers Map.............................................................................173