MB90091 데이터 시트보기 (PDF) - Fujitsu

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MB90091

Intelligent on-screen display controller (IOSDC)

Fujitsu 

MB90091A

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Pin No.

DIP

QFP

33

26

34

27

35

28

36

29

38

31

40

33

41

34

42

35

43

36

44

37

45

38

46

39

48

41

49

42

50

43

51

44

52

45

53

46

54

47

55

48

56

49

58

51

59

52

60

53

61

54

62

55

63

56

64

57

Pin name I/O

Function

RA0

RA1

RA2

RA3

RA4

RA5

RA6

RA7

RA8

RA9

RA10

RA11

RA12

RA13

RA14

RA15

TSEL

FSEL

SCLK

SIN

SCS

TRE

ROUT

GOUT

BOUT

IOUT

VOB1

VOB2

External ROM address signal output pin

This pin outputs the signal specifying the external font ROM or

external command table ROM address.

External font ROM addresses

O

RA0 to RA4 : Raster addresses

RA5 to RA11 : Character codes (M0 to M6)

RA12, RA13 : Character horizontal address

= (0, 0): Left byte

= (1, 0): Center byte

= (0, 1): Right byte

RA14, RA15 : Character codes (M7, M8)

Address control input pin for command table ROM

“L” level input : 0000H to 7FFFH Internal ROM

I

8000H to FFFFH External ROM

“H” level input : 0000H to 7FFFH External ROM

8000H to FFFFH Internal ROM

Internal/external font ROM select pin

I “L” level input : Select internal ROM.

“H” level input : Select external ROM.

I Shift clock input pin for serial transfer

I Serial data input pin

Chip select pin

I For serial transfer, set this pin to the “L” level.

This pin is also used to cancel a power-on reset.

Output pin for the signal indicating internal operation

O This pin outputs an “H” level signal during data transfer from

command table ROM.

Chrominance signal output pin

For output of a character, character background, pattern background,

O shaded background, screen background, or sprite character

(including a pattern background), this pin outputs the chrominance

signal.

Pin for specifying the chrominance signal output period

O

This pin outputs an “H” level signal for output of a character, character

background, pattern background, shaded background, screen

background, or sprite character (including a pattern background.

Pin for specifying the specified character output period

When the command 6: ATH bit = “1”, this pin outputs an “H” level

O

signal in the character output period (24 x 32 dot period) when the

command 1: AT bit = “1”.

The pin can be used for display control by an external circuit, for

example, for halftone display control.

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6

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