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GDC21D601
THUMB code is able to provide up to 65% of the code size of ARM, and 160% of the performance of an
equivalent ARM processor connected to a 16-bit memory system.
Virtual Address Bus
MMU
8KB Cache
ARM7TDMI
CPU
Data and
Address
Buffers
AMBA Interface
Internal Data Bus
Control and
Clocking
Logic
System
Control
Coprocessor
JTAG
Debug
Interface
Coprocessor
Interface
AMBA Bus
Interface
Figure 1. ARM720T Block Diagram
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