mcf51ac256a Freescale Semiconductor, Inc, mcf51ac256a Datasheet - Page 152

• Manufacturer Part Number: mcf51ac256a
• Description: Mcf51ac Flexis
• Manufacturer: Freescale Semiconductor, Inc

ColdFire Core
Information loaded into D1 defines the local memory hardware configuration as shown in the figure below.
7-22
FLASHSZ
ROMSZ
31–24
23–19
18–16
15–12
Reset
Reset
BDM: Load: 0x61 (D1)
Field
11–8
W
W
R
R
Store: 0x41 (D1)
31
15
0
0
0
0
Reserved.
Flash bank size.
00000-01110 No flash
10000 64 KB flash
10010 128 KB flash
10011 96 KB flash
10100 256 KB flash (This is the value used for this device)
10110 512 KB flash
Else
Reserved
Reserved, resets to 0b0001
Boot ROM size. Indicates the size of the boot ROM.
0000 No boot ROM (This is the value used for this device)
0001 512 bytes
0010 1 KB
0011 2 KB
0100 4 KB
0101 8 KB
0110 16 KB
0111 32 KB
Else Reserved for future use
30
14
0
0
0
0
Reserved for future use
Table 7-12. D1 Hardware Configuration Information Field Description
MCF51AC256 ColdFire Integrated Microcontroller Reference Manual, Rev. 5
29
13
0
0
0
0
28
12
1
1
1
1
Figure 7-13. D1 Hardware Configuration Info
27
11
0
0
0
26
10
0
0
0
ROMSZ
25
0
0
0
9
24
0
0
0
Description
8
23
1
0
7
22
0
1
6
FLASHSZ
SRAMSZ
21
1
5
1
20
0
1
4
19
0
0
3
Freescale Semiconductor
Access: User read-only
18
0
0
0
0
2
BDM read-only
17
0
0
0
0
1
16
0
0
0
0
0