PD17225_15 Datasheet, PDF (55/86 Pages) Renesas Technology Corp – 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER

µPD17225, 17226, 17227, 17228
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 OPTION and ENDOP directives
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:
Description format:
Symbol
[Label: ]
Mnemonic
OPTION
:
:
:
ENDOP
Operand
Comment
[;Comment]
11.1.2 Mask option definition directives
Table 11-1 lists the directives that can be used in the mask option definition block.
Here is an example of mask option definition:
Description example:
Symbol
Mnemonic
Operand
Comment
OPTION
OPTRES
OPTPOC
ENDOP
PULLUP
USEPOC
; RESET pin has pull-up resistors.
; Internal low-voltage detector circuit
Data Sheet U12643EJ2V0DS00
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