PXS20RM Datasheet, PDF (564/1368 Pages) Freescale Semiconductor, Inc – PXS20 Microcontroller

Flash Memory
Offset 0x0000
Access: User read/write
0
1
2
3
4
5
6
7
8
9
10 11 12 13 14 15
R₀
0
0
0
0
SIZE
0
LAS
0
0
0 MAS
W
RESET: ₀
0
0
0
0
0
1
1
0
1
1
0
0
0
0
0
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31
R _{EER RWE SBC 0 PEAS DONE PEG 0}
0
0
0 PGM PSUS ERS ESUS EHV
W _{w1c w1c w1c}
RESET: ₀
0
0
0
0
1
1
0
0
0
0
0
0
0
0
0
Field
SIZE
LAS
MAS
= Unimplemented or Reserved
Figure 23-3. Module Configuration Register (MCR)
Table 23-3. MCR Field Descriptions
Description
Array Space Size. The value of the SIZE field is dependent upon the size of the c90f module. SIZE
is read only.
000 Reserved
001 Reserved
010 Reserved
011 1.0 MB (256 KB of LAS, 256 KB of MAS, and 512 KB of HAS)
100 Reserved
101 Reserved
110 Reserved
111 Reserved
Low Address Space. The value of the LAS field corresponds to the configuration of the Low
Address Space. LAS is read only.
000 One 256 Kbyte Blocks
001 Two 128 Kbyte Blocks
010 Four 16 Kbyte, four 48 Kbyte Blocks
011 Reserved
100 Eight 16 Kbyte, two 64 Kbyte Blocks
101 Reserved
110 Two 16 Kbyte, two 48 Kbyte, two 64 Kbyte Blocks
111 Reserved
Mid Address Space. The value of the MAS field corresponds to the configuration of the Mid
Address Space. MAS is read only.
0 Two 128 Kbyte Blocks
1 One 256 Kbyte Blocks (only available if LAS =0)
23-14
PXS20 Microcontroller Reference Manual, Rev. 1
Freescale Semiconductor