參數(shù)資料
型號: UPD17228
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): 53/84頁
文件大?。?/td> 393K
代理商: UPD17228
μ
PD17225, 17226, 17227, 17228
53
Data Sheet U12643EJ2V0DS00
11. ASSEMBLER RESERVED WORDS
11.1
Mask Option Directives
When developing the
μ
PD17225 program, mask options must be specified by using mask option directives in the
program.
The RESET pin for
μ
PD17225 requires a mask option to be specified.
11.1.1
That portion of the program enclosed by the OPTION and ENDOP directives is called a mask option definition block.
This block is described in the following format:
OPTION and ENDOP directives
Description format:
Symbol
Mnemonic
Operand
Comment
[Label: ]
OPTION
:
:
:
ENDOP
[;Comment]
11.1.2
Table 11-1 lists the directives that can be used in the mask option definition block.
Here is an example of mask option definition:
Mask option definition directives
Description example:
Symbol
Mnemonic
Operand
Comment
OPTION
OPTRES
PULLUP
; RESET pin has pull-up resistors.
OPTPOC
USEPOC
; Internal low-voltage detector circuit
ENDOP
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