參數(shù)資料
型號： UPD753204GT
廠商： NEC Corp.
英文描述： 4-BIT SINGLE-CHIP MICROCONTROLLERS
中文描述： 4位單晶片微控制器
文件頁數(shù)： 15/80頁
文件大?。?/td> 577K
代理商： UPD753204GT
15
μ
PD753204, 753206, 753208
Caution
Since SBS. 3 is set to “1” after a RESET signal is generated, the CPU operates in the Mk I mode.
When executing an instruction in the Mk II mode, set SBS. 3 to “0” to select the Mk II mode.
4.2 Setting Method of Stack Bank Select Register (SBS)
Switching between the Mk I mode and Mk II mode can be done by the SBS. Figure 4-1 shows the format.
The SBS is set by a 4-bit memory manipulation instruction. When using the Mk I mode, the SBS must be
initialized to 100
×
B
Note
at the beginning of a program. When using the Mk II mode, it must be initialized to 000
×
B
Note
.
Note
The desired numbers must be set in the
×
positions.
Figure 4-1. Stack Bank Select Register Format
SBS3
SBS2
SBS1
SBS0
3
2
1
0
Symbol
SBS
Address
F84H
0
0
0
1
0
1
0
Memory bank 0
Memory bank 1
Other than
above
0 must be set in the bit 2 position.
Stack area specification
Mk II mode
Mk I mode
Mode switching specification
Setting prohibited
相關(guān)PDF資料
PDF描述
UPD753208 4-BIT SINGLE-CHIP MICROCONTROLLERS
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UPD754202GS 4-BIT SINGLE-CHIP MICROCONTROLLERS
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