TC9328AF datasheet(13/84 Pages) TOSHIBA

13 / 84 page

TC9328AF

2004-09-13

ALU

ALU is equipped with binary 4-bit parallel add/subtract functions, logical operation, comparison and

multiple bit judgment functions. This CPU is not equipped with an accumulator, and all operations are

handled directly within the data memory.

Program Memory (ROM)

The program memory consists of 16 bits × 16384 steps and is used for storing programs. The usable

address range consists of 16384 steps between address 0000H and 1FFFH.

The program memory divids 16384 into 8 separate steps and consists of page 0 to 7. The JUMP

instruction can be freely used throughout all 16384 steps though the Call instruction can use the address

from 0000H to 0fffH from page 0 to 3.

In case of setting DAL bit, arranged on I/O map, “0” (DAL ADDR3, (r) command), the program memory

address 0000H to 03FFH, page 0, are used as data area and setting DAL bit “1” (DAL (DA) command), the

program memory address 0000H to 0FFFH (page 0 to 3) are used as data area. The 16-bit content of this

can be loaded into the data register by executing the DAL instruction.

Note: Set the address for data area of program memory outside of the program loop.

*1:

DAL bit

= DAL access area at setting “0”

*2:

DAL bit

= DAL access area at setting “1”

Note: DAL bit is arranged on I/O map.

0000H

Page 0

(1 k step)

0400H

Page 1

0800H

Page 2

0C00H

Page 3

1000H

Page 4

1400H

Page 5

1800H

Page 6

1C00H

1FFFH

Page 7

0000H

JUMP address at initialization

0001H

INTR1

0002H

INTR2

0003H

Serial interface

0004H

8-bit timer

ROM

16 bits

The vector address at an interruption

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