Hitachi F-ZTAT H8/3039 Series Hardware Manual page 84

Table 3-4 Access Restrictions in Mode 6 (Single-Chip Normal Mode) (cont)
Addressing Mode
Absolute address
(@aa:24)
Immediate
Program-counter
relative
(@(d:8,PC),
@(d:16,PC))
Memory indirect
(@@aa:8)
Conditions
Restricted Item Address Range
Value of @aa
H'010000 or above,
with lower 16 bits in
range H'0000 to
H'F710
 
Value of PC plus H'010000 or above,
displacement with lower 16 bits in
range H'0000 to
H'F710
 
Operation Restriction
Read data is Do not access addresses
undefined. in range shown under
Writes are Conditions; or, write
invalid. same data as in
H'00000—H'0FFFF to
H'10000—H'1FFFF in
on-chip ROM.

No problem
Does not Do not access addresses
operate in range shown under
normally since Conditions; or, write
instruction same data as in
code is H'00000—H'0FFFF to
undefined. H'10000—H'1FFFF in
on-chip ROM.

No problem
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