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CHAPTER 22
µ
PD78P014, 78P014Y
496
Figure 22-1. Internal Memory Size Switching Register Format
Symbol
7
6
5
4
3
2
1
0
Address
When Reset
R/W
IMS
RAM2
RAM1
RAM0
0
ROM3 ROM2 ROM1 ROM0
FFF0H
Note
W
ROM3 ROM2 ROM1 ROM0
Internal ROM
Capacity Selection
0
0
0
1
4 Kbytes
0
0
1
0
8 Kbytes
0
1
0
0
16 Kbytes
0
1
1
0
24 Kbytes
1
0
0
0
32 Kbytes
Other than above
Setting prohibited
RAM2
RAM1
RAM0
Internal High-Speed RAM
Capacity Selection
0
0
0
768 bytes
0
0
1
640 bytes
0
1
0
512 bytes
0
1
1
384 bytes
1
0
0
256 bytes
1
0
1
Setting prohibited
1
1
0
1024 bytes
1
1
1
896 bytes
Note
The value of the memory size switching register at reset depends on the model (see Table 22-2).
Table 22-2. Internal Memory Size Switching Register Value at Reset
Part Number
Value at Reset
Part Number
Value at Reset
µ
PD78001B, 78001BY
82H
µ
PD78013, 78013Y
C6H
µ
PD78002B, 78002BY
64H
µ
PD78014, 78014Y
C8H
µ
PD78011B, 78011BY
42H
µ
PD78P014, 78P014Y
µ
PD78012B, 78012BY
44H
Содержание 78011BGC AB8 Series
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