參數(shù)資料
型號(hào): UPD178078GF-XXX-3BA
廠商: NEC Corp.
元件分類(lèi): 8位微控制器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8位微控制器
文件頁(yè)數(shù): 20/72頁(yè)
文件大?。?/td> 366K
代理商: UPD178078GF-XXX-3BA
20
μ
PD178076, 178078, 178096, 178098
Data Sheet U12885EJ3V0DS00
2.2 Internal Extension RAM Size Select Register (IXS)
This register is used to select the capacity of the internal extension RAM.
Set 0AH of this register of the
μ
PD178076 and 178096. Set 08H of the IXS of the
μ
PD178078 and 178098.
Use an 8-bit memory manipulation instruction to set the IXS.
This register is set to 0CH at reset.
Figure 2-3. Format of Internal Extension RAM Size Select Register (IXS)
IXRAM4 IXRAM3 IXRAM2 IXRAM1 IXRAM0
Selects internal extension RAM capacity
0
1
0
0
0
2048 bytes
0
1
0
1
0
1024 bytes
Others
Setting prohibited
7
0
6
0
5
0
4
IXRAM4
3
I
XRAM3
2
I
XRAM2
1
I
XRAM1
0
I
XRAM0
Symbol
IXS
At reset
0CH
R/W
R/W
Address
FFF4H
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