STFPC311 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

STFPC311

Front panel controller/driver with standby power management

STMicroelectronics 

STFPC311

4 Display RAM address and display mode

4 Display RAM address and display mode

Note:

The display RAM stores the data transmitted from an external device to the STFPC311 through

the serial interface and is assigned addresses, in units of 8-bits see :Table 2.

Only the lower 4 bits of the addresses assigned to Seg17 through Seg20 are valid, the higher 4

bits are ignored.

The common grid/segment outputs are grid-based. The grid has to be enabled before any

segments can be turned on. If data is written for a segment before enabling its grid, there is

nothing on the display.

Table 2. Assigned addresses

Seg1

Seg4

Seg8

Seg12

Seg16

Seg20

00 HL

00 HU

03 HL

03 HU

06 HL

06 HU

09 HL

09 HU

0C HL

0C HU

0F HL

0F HU

12 HL

12 HU

15 HL

15 HU

18 HL

18 HU

1B HL

1B HU

1E HL

1E HU

21 HL

21 HU

24 HL

24 HU

27 HL

27 HU

2A HL

2A HU

2D HL

2D HU

b0

b3 b4

b7

XX HL

XX HU

Lower 4 bits Higher 4 bits

01 HL

04 HL

07 HL

0A HL

0D HL

10 HL

13 HL

16 HL

19 HL

1C HL

1F HL

22 HL

25 HL

28 HL

2B HL

2E HL

01 HU

04 HU

07 HU

0A HU

0D HU

10 HU

13 HU

16 HU

19 HU

1C HU

1F HU

22 HU

25 HU

28 HU

2B HU

2E HU

02 HL

05 HL

08 HL

0B HL

0E HL

11 HL

14 HL

17 HL

1A HL

1D HL

20 HL

23 HL

26 HL

29 HL

2C HL

2F HL

DIG1

DIG2

DIG3

DIG4

DIG5

DIG6

DIG7

DIG8

DIG9

DIG10

DIG11

DIG12

DIG13

DIG14

DIG15

DIG16

15/39

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