AT91M40400-25C ATMEL Corporation, AT91M40400-25C Datasheet - Page 112

• Manufacturer Part Number: AT91M40400-25C
• Description: 16/32-bit Microcontroller, 2.7V to 3.6V Operating Range
• Manufacturer: ATMEL Corporation

SF: Special Function
The AT91M40400 provides registers which implement the following special functions.
•
•
•
SF User Interface
Chip ID Base Address = 0xFFF00000
Table 14. SF Memory Map
Chip ID Register
Register Name:
Access Type:
•
•
Chip identification
RESET status
Protect Mode (see Protect Mode on page 37)
112
VERSION: Version of the chip
This value is incremented by one with each new version of the chip (from zero to a maximum value of 31).
NVPSIZ: Non Volatile Program Memory Size
0
0
0
0
1
EXT
31
23
15
Offset
7
0
0x0C
0x00
0x04
0x08
0x10
0x14
0x18
0
0
1
1
0
NVPSIZ
Others
0
1
0
1
0
AT91M40400
Register
Chip ID Register
Chip ID Extension Register
Reset Status Register
Reserved
Reserved
Reserved
Protect Mode Register
30
22
14
SF_CIDR
Read only
6
1
NVDSIZ
ARCH
0
1
1
1
1
Size
None
32K bytes
64K bytes
128K bytes
256K bytes
NVPTYP
29
21
13
5
0
Reserved
28
20
12
4
27
19
11
3
SF_CIDR
SF_EXID
SF_PMR
SF_RSR
Name
---
---
---
VERSION
26
18
10
2
Read/Write
NVPSIZ
Read only
Read only
Read only
ARCH
VDSIZ
Access
---
---
---
25
17
9
1
Reset State
See register
description
Hardwired
Hardwired
0x0
---
---
---
24
16
8
0