FD2000

Rev1.0

19/37

Code

D40 D41 D42 D43 D44 D45 D46 D47 D48 D49 D50 D51 D52 D53 D54 D55 D56 D57 D58 D59 D60 D61 D62 D63

AD1 AD2 AD3 AD4 AD5

X

X

X

RA0 RA1 RA2 RA3

X

X

X

X

IM

X

X

X

0

1

1

0

X: don’t care

10.6.1. RA0 to RA3: ADRAM address

RA0

RA1

RA2

RA3

LSB

MSB

10.6.2. AD1 to AD5: ADATA display data

In addition to the 5 x 7, 5 x 8, or 5 x 9 dot matrix display data (MDATA), this LSI supports direct display of the five

accessory display segments provided in each digit as ADATA. This display function does not use CGROM or

CGRAM. The figure below shows the correspondence between the data and the display. When ADn = 1 (where n

is an integer between 1 and 5) the segment corresponding to that data will be turned on.

10.6.3. IM: Setting the method of writing data to ADRAM

IM

ADRAM data write method

0

Normal ADRAM data write (Specifies the ADRAM address and writes the ADRAM data.)

1

Increment mode ADRAM data write (Increments the ADRAM address by +1 each time data is written to ADRAM.)

− ADRAM data write method when IM = 0