UPD17244 View Datasheet(PDF) - NEC => Renesas Technology

Part Name

Description

Manufacturer

UPD17244

4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS

NEC => Renesas Technology 

µPD17240, 17241, 17242, 17243, 17244, 17245, 17246

2.2 Program Memory (ROM)

The configuration of the program memory is as follows.

Part Number

µPD17240

µPD17241

µPD17242

µPD17243

µPD17244

µPD17245

µPD17246

Program Memory Capacity

2,048 × 16 bits

4,096 × 16 bits

6,144 × 16 bits

8,192 × 16 bits

10,240 × 16 bits

12,288 × 16 bits

16,384 × 16 bits

Program Memory Address

0000H to 07FFH

0000H to 0FFFH

0000H to 17FFH

0000H to 1FFFH

0000H to 27FFH

0000H to 2FFFH

0000H to 3FFFH

The program memory stores the program, interrupt vector table, and fixed data table.

The program memory is addressed by the program counter.

Figure 2-4 shows the program memory map. The entire range of the program memory can be addressed by the

BD addr, BR @AR, CALL @AR, MOVT DBF, and @AR instructions. Note, however, that the subroutine entry

addresses that can be specified by the CALL addr instruction are from 0000H to 07FFH.

18

Data Sheet U15002EJ1V0DS

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