M38B53M4-059FP datasheet(60/355 Pages) MITSUBISHI

60 / 355 page

38B5 Group User’s Manual

1-44

HARDWARE

FUNCTIONAL DESCRIPTION

Data setup

(1) 16-timing•Ordinary Mode

The area of addresses 0FB016 to 0FFF16 are used as a

FLD automatic display RAM.

When data is stored in the FLD automatic display RAM,

the last data of FLD port P2 is stored at address 0FB016,

the last data of FLD port P0 is stored at address 0FC016,

the last data of FLD port P1 is stored at address 0FD016,

the last data of FLD port P3 is stored at address 0FE016,

and the last data of FLD port P8 is stored at address 0FF016,

to assign in sequence from the last data respectively.

The first data of the FLD port P2, P0, P1, P3, and P8 is stored at

an address which adds the value of (the timing number – 1) to the

corresponding address 0FB016, 0FC016, 0FD016, 0FE016, and

0FF016.

Set the FLD data pointer reload register to the value given by the

timing number – 1. “1” is always written to bits 7, 6, and 5. Note

that “0” is always read from bits 7, 6, and 5 when reading. “1” is

always set to bit 4, but this bit become written value when read-

ing.

(2) 16-timing•Gradation Display Mode

Display data setting is performed in the same way as that of the

16-timing•ordinary mode. Gradation display control data is ar-

ranged at an address resulting from subtracting 005016 from

the display data store address of each timing and pin. Bright dis-

play is performed by setting “0,” and dark display is performed by

setting “1.”

Set the FLD data pointer reload register to the value given by the

timing number – 1. “1” is always written to bits 7, 6, and 5. Note

that “0” is always read from bits 7, 6, and 5 when reading. “1” is

always set to bit 4, but this bit become written value when read-

ing.

(3) 32-timing Mode

The area of addresses 0F6016 to 0FFF16 are used as a FLD au-

tomatic display RAM. When data is stored in the FLD automatic

display RAM, the last data of FLD port P2 is stored at address

0F6016, the last data of FLD port P0 is stored at address 0F8016,

the last data of FLD port P1 is stored at address 0FA016,

the last data of FLD port P3 is stored at address 0FC016,

and the last data of FLD port P8 is stored at address 0FE016,

to assign in sequence from the last data respectively.

The first data of the FLD port P2, P0, P1, P3, and P8 is stored

at an address which adds the value of (the timing number – 1)

to the corresponding address 0F6016, 0F8016, 0FA016, 0FC016,

and 0FE016.

Set the FLD data pointer reload register to the value given by

the timing number –1. “1” is always written to bits 7, 6, and 5.

Note that “0” is always read from bits 7, 6, and 5 when reading.

Fig. 45 Example of using FLD automatic display RAM in

16-timing•ordinary mode

Number of FLD segments: 15

Number of timing: 8

(FLD data pointer reload register = 7)

Address

0FCF16

0FB116

0FB216

0FB316

0FB416

0FB516

0FB616

0FB716

0FB816

0FB916

0FBA16

0FBB16

0FBC16

0FBD16

0FBE16

0FBF16

0FC016

0FC116

0FC216

0FC316

0FC416

0FC516

0FC616

0FC716

0FC816

0FC916

0FCA16

0FCB16

0FCC16

0FCD16

0FCE16

0FD016

0FD116

0FD216

0FD316

0FD416

0FD516

0FD616

0FD716

0FD816

0FD916

0FDA16

0FDB16

0FDC16

0FDD16

0FDE16

0FDF16

0FE116

0FE216

0FE316

0FE416

0FE516

0FE616

0FE716

0FE816

0FE916

0FEA16

0FEB16

0FEC16

0FED16

0FEE16

0FEF16

0FE016

0FF116

0FF216

0FF316

0FF416

0FF516

0FF616

0FF716

0FF816

0FF916

0FFA16

0FFB16

0FFC16

0FFD16

0FFE16

0FFF16

0FF016

0FB016

The last timing

(The last data of FLDP2)

654

3210

Bit

The last timing

(The last data of FLDP0)

The last timing

(The last data of FLDP1)

The last timing

(The last data of FLDP3)

The last timing

(The last data of FLDP8)

Timing for start

(The first data of FLDP2)

FLDP2 data area

Timing for start

(The first data of FLDP0)

FLDP0 data area

Timing for start

(The first data of FLDP1)

FLDP1 data area

Timing for start

(The first data of FLDP3)

FLDP3 data area

Timing for start

(The first data of FLDP8)

FLDP8 data area

Note:

shaded area is used for segment.

shaded area is used for digit.

M38B53M4-059FP Datasheet(PDF) 60 Page - Mitsubishi Electric Semiconductor

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