EPXA1 ALTERA [Altera Corporation], EPXA1 Datasheet - Page 7

• Manufacturer Part Number: EPXA1
• Description: Excalibur Device Overview
• Manufacturer: ALTERA [Altera Corporation]

Figure 3. ARM922T Embedded Processor Internal Organization
Altera Corporation
C13
JTAG
Context Identification Register
DVA(31..0)
IVA(31..0)
(+ Embedded ICE
Processor Core
ARM9TDMI
Interface)
C13
Data MMU
Instruction
C13
MMU
Independent of PLD configuration, the embedded processor can
undertake the following activities:
I
I
I
I
I
I
I
The PLD can be configured to implement various extensions:
I
I
I
Boot from external memory
Execute embedded software
Communicate with the external world
Run a real-time operating system
Run interactive embedded software debugging sessions
Configure/reconfigure the PLD
Detect errors and restart/reboot/reconfigure the entire system
as necessary
Additional soft-core peripherals such as a UART, Ethernet
MAC, CAN controllers, PCI, or any other IP core
Peripherals that are bus masters, sharing the embedded stripe
on-chip and off-chip memories as well as other PLD peripheral
Peripherals that are slaves, controlled by the embedded
processor
IMVA(31..0)
ID(31..0)
DD(31..0)
DMVA(31..0)
Data Cache
Instruction
(8 Kbyte)
(8 Kbyte)
Cache
DPA(31..0)
IPA(31..0)
Write-Back
TAG RAM
Embedded
Address
Module
Page
Trace
Buffer
Write
Data
WBPA(31..0)
Excalibur Device Overview
Interface
AMBA
Bus
AHB
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