參數(shù)資料
型號： UPD78P4038YGC
廠商： NEC Corp.
英文描述： RECTIFIER BRIDGE 1.5A 800V 40A-ifsm 1.1V-vf 5uA-ir KBP 35/TUBE
中文描述： 16/8-BIT單片機
文件頁數(shù)： 20/72頁
文件大?。?/td> 435K
代理商： UPD78P4038YGC
μ
PD78P4038Y
20
5. INTERNAL MEMORY SWITCHING (IMS) REGISTER
This register enables the software to avoid using part of the internal memory. The IMS register can be set to
establish the same memory mapping as used in ROM products that have different internal memory (ROM and RAM)
configurations.
The IMS register is set using 8-bit memory operation instructions.
A RESET input sets the IMS register to FFH.
Figure 5-1. Internal Memory Switching (IMS) Register
The IMS is not contained in a mask ROM product (
μ
PD784035Y,
μ
PD784036Y,
μ
PD784037Y, or
μ
PD784038Y).
But the action is not affected if the write command to the IMS is executed to the mask ROM product.
IMS
IMS7
IMS6
IMS5
IMS4
IMS3
IMS2
IMS1
IMS0
7
6
5
4
3
2
1
0
0FFFCH
Address
FFH
After Reset
W
R/W
IMS0-7
FFH
EEH
DCH
Same as the PD784038Y
Memory Size
CCH
Same as the PD784037Y
Same as the PD784036Y
Same as the PD784035Y
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