150
Chapter 4
Bus Control Function (
μ
PD70F3187 only)
User’s Manual U16580EE3V1UD00
4.4.1 Bus cycle type configuration
(1)
Bus cycle configuration registers 0, 1 (BCT0, BCT1)
These registers can be read/written in 16-bit units
Cautions: 1. Write to the BCT0 and BCT1 registers after reset, and then do not change the set
value. Also, do not access an external memory area other than that for this
initialization routine until initial setting of the BCT0 and BCT1 registers is
finished. However, it is possible to access external memory areas whose
initialization has been finished.
2. The bits marked as 0 and 1 are reserved.
The values of these bits must not be
changed. Otherwise the operation of the external bus interface cannot be
ensured.
Figure 4-3:
Bus Cycle Configuration Registers 0, 1 (BCT0, BCT1)
After reset:
CCCCH
R/W
Address:
FFFFF480H
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
BCT0
ME3
1
0
0
ME2
1
0
0
ME1
1
0
0
ME0
1
0
0
CS3
CS2
CS1
CS0
After reset:
CCCCH
R/W
Address:
FFFFF482H
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
BCT1
ME7
1
0
0
ME6
1
0
0
ME5
1
0
0
ME4
1
0
0
CS7
CS6
CS5
CS4
MEn
Memory Controller Operation Enable for CSn Area
0
Operation disable
1
Operation enable
Содержание V850E/PH2
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Страница 192: ...192 Chapter 5 Memory Access Control Function PD70F3187 only User s Manual U16580EE3V1UD00 MEMO...
Страница 312: ...312 Chapter 9 16 Bit Timer Event Counter P User s Manual U16580EE3V1UD00 MEMO...
Страница 534: ...534 Chapter 11 16 bit Timer Event Counter T User s Manual U16580EE3V1UD00...
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Страница 976: ...976 Chapter 22 Internal RAM Parity Check Function User s Manual U16580EE3V1UD00 MEMO...
Страница 984: ...984 Chapter 23 On Chip Debug Function OCD User s Manual U16580EE3V1UD00 MEMO...
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Страница 1036: ...1036 Chapter 27 Recommended Soldering Conditions User s Manual U16580EE3V1UD00 MEMO...
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