267
Bus and Memory Control (BCU, MEMC)
Chapter 7
Preliminary User’s Manual U17566EE1V2UM00
Initialization
Initialize the CSCn registers as shown in
•
Table 7-13
for µPD70F3426
•
Table 7-14
for µPD70F3427
Caution
For the µPD70F3426 the CSC0 register must be changed to 2811
H
and CSC1
must be left with its default value 2C11
H
. Do not modify these registers after
setting CSC0 = 2811
H
.
Table 7-13
Initialization of the µPD70F3426 CSCn registers
Bits
Set to value
Comment
CSC0.CS0[3:0]
0001
B
CS0 assigned to bank 0 to VSB Flash memory
010 0000
H
- 01F FFFF
H
.
CSC0.CS0[3:0] must be left with their default
value 1000
B
.
CSC0.CS1[3:0]
1000
B
CSC0.CS1[3:0] must be left with their default
value 1000
B
.
CSC0.CS2[3:0]
1000
B
CS2 assigned to bank 3 to VSB RAM memory
060 0000
H
- 060 5FFF
H
.
Caution:
CSC0.CS2[3:0] must be changed
to 1000
B
(default value is 1100
B
).
CSC0.CS3[3:0]
0010
B
CSC0.CS3[3:0] must be left with their default
value 0010
B
.
CSC1.CS4[3:0]
0010
B
CSC0.CS4[3:0] must be left with their default
value 0010
B
.
CSC1.CS5[3:0]
1100
B
CSC0.CS5[3:0] must be left with their default
value 1100
B
.
CSC1.CS6[3:0]
0001
B
CSC0.CS6[3:0] must be left with their default
value 0001
B
.
CSC1.CS7[3:0]
0001
B
CSC0.CS7[3:0] must be left with their default
value 0001
B
.
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