參數(shù)資料
型號(hào): UPD17215
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): 18/84頁
文件大?。?/td> 350K
代理商: UPD17215
μ
PD17215, 17216, 17217, 17218
18
2.4.4
Data buffer (DBF)
The data buffer on the addresses 0CH to 0FH of data memory is used for data transfer to and from peripheral hardware
and for storage of data during table reference.
(1)
Functions of the Data Buffer
The data buffer has two major functions: a function to transfer to and from hardware and a function to read
constant data from the program memory (for table reference). Figure 2-7 shows the relationship between the data
buffer and peripheral hardware.
Fig. 2-7 Data Buffer and Peripheral Hardware
Data buffer
(DBF)
Internal bus
Program memory
(ROM)
Constant data
Peripheral
address
Peripheral hardware
8-bit timer
(TMC, TMM)
Carrier generator for
remote controller
(NRZLTMM, NRZHTMM)
Address register (AR)
05H, 06H
03H, 04H
40H
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UPD17216GT 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