upd17225 Renesas Electronics Corporation., upd17225 Datasheet - Page 54

• Manufacturer Part Number: upd17225
• Description: 4-bit Single-chip Microcontroller For Small General-purpose Infrared Remote Control Transmitter
• Manufacturer: Renesas Electronics Corporation.

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11.2
11.2.1
and POKE instructions through the window register (WR). Figure 11-1 shows the register file.
11.2.2
assigned to address 70H and those that follow, and system register names are defined. Figure 11-2 shows the data
memory configuration.
11.2.3
the peripheral hardware.
RESET
POC
Name
The symbols defined by the PD17225 device file are listed in Table 11-2.
The defined symbols are the following register file names, port names, and peripheral hardware names.
The names of the symbols assigned to the register file are defined. These registers are accessed by the PEEK
The names of the registers assigned at addresses 00H through 7FH on the data memory and the names of ports
The names of peripheral hardware accessed by the GET and PUT instructions are defined. Table 11-3 shows
Reserved Symbols
Register file
Registers and ports on data memory
Peripheral hardware
OPTRES
OPTPOC
Directive
Operands
1
1
Table 11-1. Mask Option Definition Directives
Mask option of
RESET
PULLUP
(w/pull-up resistor)
OPEN
(w/o pull-up resistor)
USEPOC
(low-voltage detector
circuit provided)
NOUSEPOC
(low-voltage detector
circuit not provided)
1st Operand
Data Sheet U12643EJ2V0DS00
2nd Operand
PD17225, 17226, 17227, 17228
3rd Operand
4th Operand