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參數資料
| 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位單片機的小型通用紅外遙控器 |
| 文件頁數： | 20/84頁 |
| 文件大?。?/td> | 393K |
| 代理商： | UPD17228CT |
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μ
PD17225, 17226, 17227, 17228
20
Data Sheet U12643EJ2V0DS00
Table 2-2. Relations between Hardware Peripherals and Data Buffer
Hardware
Peripherals
Peripheral Register Transferring Data with Data Buffer
Name
Symbol
Peripheral
Address
Data
PUT/GET
Buffer Used
8-Bit Timer
8-bit counter
TMC
05H
DBF0, DBF1
GET only
8-bit modulo
register
TMM
06H
DBF0, DBF1
PUT only
Remote Controller
Carrier Generator
NRZ low-level
timer modulo
register
NRZLTMM
03H
DBF0, DBF1
PUT
GET
NRZ high-level
timer modulo
register
NRZHTMM
04H
DBF0, DBF1
PUT (clear bit 3
of DBF1 to 0)
GET (bits 3 of
DBF1 is always 0)
Address Register
Address register
AR
40H
DBF0-DBF3
PUT (bits 0-3 of
AR3 and bit 3 of
AR2 are any)
Note 1
GET (bits 0-3 of
AR3 and bit 3 of
AR2 are always 0)
Note 2
Notes 1.
In the
μ
PD17226: bits 0 to 3 of AR3 are any, in the
μ
PD17227, 17228: bits 1 to 3 of AR3 are any
2.
In the
μ
PD17226: bits 0 to 3 of AR3 are always 0, in the
μ
PD17227, 17228: bits 1 to 3 of AR3 are always 0
(2) Table reference
A MOVT instruction reads constant data from a specified location of the program memory (ROM) and sets it
in the data buffer.
The function of the MOVT instruction is explained below.
MOVT DBF, @AR: Reads data from a program memory location pointed to by the address register (AR) and
sets it in the data buffer (DBF).
DBF 3
DBF 2
DBF 1
DBF 0
MOVT DBF, @ AR
b
15
b
0
16 bits
Program memory (ROM)
Data buffer
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相關代理商/技術參數 |
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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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