Toshiba H1 Series Data Book page 191

Size
(Byte)
256
CS area
○
CS0
○
CS1
CS2
CS3
Note:"Δ" indicates areas that cannot be set by memory start address register and address mask
register combinations.
(e) Block address area Priority
When the set block address area overlaps with the built-in memory area, or both two
address areas overlap, the block address area is processed according to priority as follows.
(f) Wait control for outside the block address area of CS0 to CS3
Also, that any accessed areas outside the address spaces set by CS0 to CS3 are processed
as the CSEX space. Therefore, settings of CSEX (BEXCSH, L-register) apply for the control
of wait cycles, data bus width, etc,.
Table 3.8.3 Valid Area Sizes for Each CS Area
512 32 K 64 K 128 K
○ ○ ○
○ ○
○ ○
○ ○
Built-in I/O > Built-in memory > Block address area 0 > 1 > 2 > 3
92CZ26A-188
256 K 512 K 1 M
Δ Δ Δ Δ
Δ Δ Δ Δ
Δ Δ Δ Δ
Δ Δ Δ Δ
TMP92CZ26A
2 M 4 M 8 M
Δ
Δ Δ
Δ Δ Δ
Δ Δ Δ