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INTRODUCTION ARM920T PROCESSOR
1-2
PROCESSOR FUNCTIONAL BLOCK DIAGRAM
Shows the functional block diagram of the ARM920T
External
Coprocessor
Interface
Instruction
Cache
Instruction
MMU
R13
ARM9TDMI
Processor Core
(Integral EmbeddedICE)
R13
Data
Cache
Data
MMU
CP15
Write Back
PA TAG RAM
Trace
Interface
Port
Write
Buffer
AMBA
Bus
Interface
IMVA[31:0]
ID[31:0]
DD[31:0]
DMVA[31:0] DPA[31:0]
WBPA[31:0]
DINDEX[31:0]
JTAG
DAV[31:0]
IVA[31:0]
IPA[31:0]
ASB
Figure 1-1. ARM920T Functional Block Diagram