Toshiba TLCS-900/L1 Series Manual page 74

(4) Address area size specification
Table 3.7.1 shows the valid area sizes for each CS area and indicates which method
can be used to make the size setting. A "Δ" indicates that it is not possible to set the
area size in question using the memory start address register and memory address
mask register. If an area size for a CS area marked "Δ" in the table is to be set, the start
address must either be set to 000000H or to a value that is greater than 000000H by an
integer multiple of the desired area size.
If the CS2 area is set to 16 Mbytes or if two or more areas overlap, the
lowest-numbered CS area has highest priority (e.g., CS0 has a higher priority than any
other area).
Example: To set the area size for CS0 to 128 Kbytes:
a. Valid start addresses
000000H
020000H
040000H
060000H
b. Invalid start addresses
000000H
010000H
030000H
050000H
Size (bytes)
256
CS area
○
CS0
○
CS1
CS2
CS3
128 Kbytes
128 Kbytes
Any of these addresses may be set as the start address.
128 Kbytes
64 Kbytes
This is not an integer multiple of the desired area size
setting. Hence, none of these addresses can be set as the
128 Kbytes
start address.
128 Kbytes
Table 3.7.1 Valid Area Sizes for Each CS Area
512 32 K 64 K 128 K
○ ○ ○
○ ○
○ ○
○ ○
91C829-72
256 K 512 K 1 M
Δ Δ Δ Δ
Δ Δ Δ Δ
Δ Δ Δ Δ
Δ Δ Δ Δ
TMP91C829
2 M 4 M 8 M
Δ
Δ Δ
Δ Δ Δ
Δ Δ Δ
2006-03-15