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參數(shù)資料
| 型號： | UPD17228CT |
| 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)： | 22/84頁 |
| 文件大?。?/td> | 393K |
| 代理商： | UPD17228CT |
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μ
PD17225, 17226, 17227, 17228
22
Data Sheet U12643EJ2V0DS00
2.5
Register File (RF)
The register file mainly consists of registers that set the conditions of the peripheral hardware.
These registers can be controlled by dedicated instructions PEEK and POKE, and the embedded macro instructions
of RA17K, SETn, CLRn, and INITFLG.
2.5.1
Configuration of register file
Figure 2-8 shows the configuration of the register file and how the register file is accessed by the PEEK and POKE
instructions.
The control registers are controlled by using dedicated instructions PEEK and POKE. Since the control registers are
assigned to addresses 00H-3FH regardless of the bank, the addresses 00H-3FH of the general-purpose data memory
cannot be accessed when the PEEK or POKE instruction is used.
The addresses that can be accessed by the PEEK and POKE instructions are the addresses 00H-3FH of the control
registers and 40H-7FH of the general-purpose data memory. The register file consists of these addresses.
The control registers are assigned to addresses 80H-BFH on the IE-17K to facilitate debugging.
Figure 2-8. Register File Access with PEEK or POKE Instructions
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
Column address
R
Data memory
System register
0
1
2
3
PEEK WR, SP
POKE LCDMD, WR
POKE M063, WR
Control register
Register file
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相關(guān)代理商/技術(shù)參數(shù) |
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| UPD17228CT-XXX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MICROCONTROLLER|4-BIT|UPD17K CPU|CMOS|SDIP|28PIN|PLASTIC |
| UPD17228GT | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17228GT-XXX | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MICROCONTROLLER|4-BIT|UPD17K CPU|CMOS|SOP|28PIN|PLASTIC |
| UPD17228MC | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER |
| UPD17228MC-XXX-5A4 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Microcontroller |
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