Fujitsu F2MC-16LX MB90580 Series Hardware Manual page 58
16-bit microcontrollers
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Also See for F2MC-16LX MB90580 Series:
- Hardware manual (706 pages) ,
- Application note (13 pages) ,
- Operation manual (10 pages)
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3.2 External Memory Access
3.2.2.1 Automatic ready function selection register
Address: 0000A5
H
Read/write
Initial value
[bits 15 and 14]: IOR1 and IOR0
These bits specify the automatic wait function for external access to the area between 000000
0000FF
.
H
IOR1
0
0
1
1
The initial value is '00B.'
[bits 13 and 12]: HMR1 and HMR0
These bits specify the automatic wait function for external access to the area between 800000
FFFFFF
.
H
HMR1
0
0
1
1
The initial value is '11B.'
[bits 9 and 8]: LMR1 and LMR0
These bits specify the automatic wait function for external access to the area between 002000
7FFFFF
.
H
LMR1
0
0
1
1
The initial value is '00B.'
38
Chapter 3: Memory
15
14
13
IOR0
IOR1
HMR1
(W)
(W)
(W)
(0)
(0)
(1)
IOR0
0
Automatic wait disabled
1
One machine cycle of automatic wait for external access
0
Two machine cycles of automatic wait for external access
1
Three machine cycles of automatic wait for external access
HMR0
0
Automatic wait disabled
1
One machine cycle of automatic wait for external access
0
Two machine cycles of automatic wait for external access
1
Three machine cycles of automatic wait for external access
LMR0
0
Automatic wait disabled
1
One machine cycle of automatic wait for external access
0
Two machine cycles of automatic wait for external access
1
Three machine cycles of automatic wait for external access
12
11
10
-
-
HMR0
(W)
(-)
(-)
(1)
(-)
(-)
Setting
Setting
Setting
9
8
Bit No.
ARSR
LMR1
LMR0
(W)
(W)
(0)
(0)
MB90580 Series
and
H
and
H
and
H
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