ARM Cortex-M3 User Manual

System Control
ARM DDI 0337G Copyright © 2005-2008 ARM Limited. All rights reserved. 3-11
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3.1.5 Memory Protection Unit registers
Table 3-8 gives a summary of the Memory Protection Unit (MPU) registers. For a
detailed description of the MPU registers, see Chapter 9 Memory Protection Unit.
WCR No Yes The Wire Control Register
RESEND No Yes The Read Resend Register
Table 3-7 Summary of Debug interface port registers (continued)
Name SWJ-DP SW-DP Description
Table 3-8 MPU registers
Name Type Address Reset value
MPU Type Register Read Only
0xE000ED90 0x00000800
MPU Control Register Read/Write 0xE000ED94 0x00000000
MPU Region Number register Read/Write 0xE000ED98 -
MPU Region Base Address register Read/Write
0xE000ED9C -
MPU Region Attribute and Size registers Read/Write
0xE000EDA0 -
MPU Alias 1 Region Base Address register Alias of
D9C 0xE000EDA4 -
MPU Alias 1 Region Attribute and Size register Alias of
DA0 0xE000EDA8 -
MPU Alias 2 Region Base Address register Alias of
D9C 0xE000EDAC -
MPU Alias 2 Region Attribute and Size register Alias of
DA0 0xE000EDB0 -
MPU Alias 3 Region Base Address register Alias of
D9C 0xE000EDB4 -
MPU Alias 3 Region Attribute and Size register Alias of
DA0 0xE000EDB8 -

ARM Cortex-M3 Specifications

General

Architecture	ARMv7-M
Instruction Set	Thumb-2
Pipeline Stages	3-stage
Interrupts	Nested Vectored Interrupt Controller (NVIC)
Interrupt Controller	Nested Vectored Interrupt Controller (NVIC)
Memory Protection Unit	Optional
Power Consumption	Varies by implementation
Max Clock Speed	Up to 100 MHz
Debugging	JTAG and Serial Wire Debug (SWD)
Operating Voltage	1.8V to 3.6V
Manufacturing Process	Varies by implementation
Core Type	32-bit