W742C814 데이터 시트보기 (PDF) - Winbond

부품명

상세내역

일치하는 목록

W742C814

4-BIT MICROCONTROLLER

Winbond 

W742C814

TAB. The MOV TAB0 (TAB1, TAB2, TAB3), R instructions are used to allocate the address of the

wanted look-up table element. The TAB0 register stores the LSB 4 bits of the look-up table address.

The organization of the program memory is shown in Figure 6-1.

0000H

:

03FFH

1st page 0400H

:

07FFH

0800H

:

2nd page 0BFFH

0C00H

:

0FFFH

16 bits

Look-up table address:

0000H

:

0FFFH

:

:

Look-up table address:

2000H

:

2FFFH

Look-up table address:

3000H

:

3FFFH

Each element (4 bits) of the look-up table

Look-up table address:

1000H

:

1FFFH

4096 X 16 BITS

Figure 6-1 Program Memory Organization

6.3.1 ROM Page Register (ROMPR)

The ROM page register is organized as a 4-bit binary register. The bit descriptions are as follows:

3

2

1

0

ROMPR

R/W

Note: R/W means read/write available.

Bit 3, Bit 2, Bit 1 is reserved.

Bit 0 ROM page preselect bits:

0 = ROM page 0 (0000H - 07FFH)

1 = ROM page 1 (0800H - 0FFFH)

-8-

Share Link: