Table of Contents
Advertisement
Bits
Name
0:3
RGN_SIZE These bits define the size of the overlay region. See Table 20-4 for sizes.
4:10
—
Reserved
11:29
RBA
The region base address defines the starting address of the memory to be overlayed.
30:31
—
Reserved
1
The overlay match address will include ISB in its comparison. The overlay can only be in the range of the ISB internal
space.
20.5.3
CALRAM Overlay Configuration Register
(CRAM_OVLCR)
MSB
1
0
Field OVL DERR CLPS
SRESET
16
17
Field
SRESET
Addr
Figure 20-8. CALRAM Overlay Configuration Register (CRAM_OVLCR)
MOTOROLA
PRELIMINARY—SUBJECT TO CHANGE WITHOUT NOTICE
Table 20-3. CRAM_RBAx Bit Descriptions
Table 20-4. RGN_SIZE Encoding
RGN_SIZE
0000
0001
0010
0011
0100
0101
0110
0111
1xxx
Note: The overlay size of 8 bytes cannot be selected
2
3
4
5
0000_0000_0000_0000
18
19
20
21
0000_0000_0000_0000
Chapter 20. CALRAM Operation
Description
Number of Overlay Bytes
Overlay block disabled
Overlay block is 4 bytes
Overlay block is 16 bytes
Overlay block is 32 bytes
Overlay block is 64 bytes
Overlay block is 128 bytes
Overlay block is 256 bytes
Overlay block is 512 bytes
Reserved
6
7
8
9
—
22
23
24
25
—
0x38 0028
Programmer's Model
1
10
11
12
13
26
27
28
29
14
15
30
LSB
31
20-13
Advertisement
Table of Contents
