Datasheet

Section 7 ROM
REJ09B0465-0300 Rev. 3.00 Page 227 of 982
Sep 17, 2010
H8S/20103, H8S/20203, H8S/20223, H8S/20115, H8S/20215, H8S/20235 Group
H'000000
H'FFFF
@MOV.W #H'FFFF, R0
@MOV.W R0, @H'00000000
@MOV.B #H'FF, R0L
@MOV.B R0L,@H'00000000
H'000000
H'FF
Using word-length instructions to issue read-array commands (FMWUS = 1)
Using byte-length instructions to issue read-array commands (FMWUS = 0)
[Read-Array Setting]
Address = Program-ROM area
[Programming Example]
; Read-array command
; First command
; Read-array command
; First command
[Programming Example]
[Read-Array Setting]
Address = Program-ROM area
Issuing of first command Reading can proceed.
Reading can proceed.Issuing of first command
Address bus
Data bus
Address bus
Data bus
Figure 7.22 Examples of Issuing Read-Array Commands