參數(shù)資料
型號(hào): UPD17226MC
廠商: NEC Corp.
元件分類: 4位微控制器
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述: 4位單片機(jī)的小型通用紅外遙控器
文件頁數(shù): 16/84頁
文件大?。?/td> 393K
代理商: UPD17226MC
μ
PD17225, 17226, 17227, 17228
16
Data Sheet U12643EJ2V0DS00
(5) General-purpose data memory
The general-purpose data memory area is an area of the data memory excluding the system register area,
and the port register area. This memory area has a total of 223 nibbles (111 nibbles in BANK0 and 112 nibbles
in BANK1).
μ
PD17225 and 17226 are not provided with BANK1.
Figure 2-4. Configuration of Data Memory
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
BANK 0
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
BANK 1
System register (SYSREG)
Example
Address 1AH
in BANK 0
System register (SYSREG)
R
R
Column address
Data buffer (DBF)
P0A P0B P0C P0D
P0E
Column address
Caution No data can be written to the addresses 70H to 73H of BANK1 (the value of P0A to P0D are read in
this case).
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