upd17240 Renesas Electronics Corporation., upd17240 Datasheet - Page 33

• Manufacturer Part Number: upd17240
• Description: 4-bit Single-chip Microcontrollers For Small General-purpose Infrared Remote Control Transmitters
• Manufacturer: Renesas Electronics Corporation.

µ PD17240, 17241, 17242, 17243, 17244, 17245, 17246
(2) Symbol definition of register file
An error occurs if a register file address is directly specified as a numeral by the operand “rf” of the “PEEK
WR, rf” or “POKE rf, WR” instruction if the 17K Series Assembler (RA17K) is being used.
Therefore, the addresses of the register file must be defined in advance as symbols.
To define the addresses of the control registers as symbols, define them as addresses 80H to BFH of BANK0.
The portion of the register file overlapping the data memory (40H to 7FH), however, can be defined as symbols
as is.
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Data Sheet U15002EJ1V1DS