參數(shù)資料
型號(hào): μPD78P4038
廠商: NEC Corp.
英文描述: 8/16 Bit Single Chip Microcontrollers(8/16位單片微控制器)
中文描述: 8 / 16位單片機(jī)微控制器(8 / 16位單片微控制器)
文件頁(yè)數(shù): 20/72頁(yè)
文件大?。?/td> 325K
代理商: ΜPD78P4038
μ
PD78P4038
20
5. INTERNAL MEMORY SWITCHING REGISTER (IMS)
This register enables the software to avoid using part of the internal memory. IMS can be set to establish the same
memory mapping as used in ROM products that have different internal memory (ROM and RAM) configurations.
IMS is set with 8-bit memory operation instructions.
RESET input sets IMS to FFH.
Figure 5-1. Internal Memory Switching Register (IMS)
IMS is not contained in a mask ROM product (
μ
PD784035,
μ
PD784036,
μ
PD784037, or
μ
PD784038). But the
action is not affected if the write command to 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 PD784038
Memory Size
CCH
Same as the PD784037
Same as the PD784036
Same as the PD784035
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