SPT2110 Просмотр технического описания (PDF) - Signal Processing Technologies

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SPT2110

NTSC/PAL VIDEO DECODER

Signal Processing Technologies 

SPT2110 NTSC/PAL VIDEO DECODER PIN FUNCTIONS

Signal Name

Data I/O

LUM8...0

CHR8...0

Y/R7...0

C/G7...0

Pin Numbers I/O

80-88

I

2-6, 93-96

I

47-49

O

52-56

37-44

O

B7...0

27-34

O

Clock and Sync Signals

CLOCK

61

I

HSYNC_

70

O

VSYNC_

71

O

HBLNK_

64

O

VBLNK_

65

O

ODD

66

O

CFLAG

69

O

STATUS_

67

O

MPU Interface

OE_

13

I

CS_

12

I

RS

11

I

RD_

10

I

WR_

9

O

D7...0

16-23

I/O

RESET_

8

I

Power Supply Connections

VDD

15, 35, 45, 62, 74, -

77, 91, 99

VSS

1, 14, 25, 26, 36, -

46, 50, 51, 60,

75, 76, 90, 100

N/C

7, 24, 57-59,63, -

68, 72, 73,78, 79,

89, 92, 97, 98

Function

Composite Video or Luminance Signal Input (LUM0 = LSB)

Chrominance Signal Input (CHR0 = LSB)

Luminance (Y) Data or R Data Output (RGB Mode)

(High Z when OE_ = 1) (Y/R0 = LSB)

Color (Cr/Cb) Data or G Data Output (RGB Mode)

(High Z when OE_ = 1) (C/G0 = LSB)

B Data Output (RGB Mode) (High Z when OE_ = 1) (B0 = LSB)

Clock Input

Horizontal Sync Signal (High Z when OE_ = 1)

Vertical Sync Signal (High Z when OE_ = 1)

Horizontal Blanking Signal (High Z when OE_ = 1)

Vertical Blanking Signal (High Z when OE_ = 1)

Field Identification Signal (EVEN/ODD) (High Z when OE_ = 1)

Logic 1 when Cb output is generated (positive polarity)

Flag indicating sync detection when low.

Output Enable: 0-Normal Output Mode

1-Specified output pins set to high impedance state

Chip Select (Active Low)

Register Select: 0-Address register access

1-Address register specified data register accessed

Read Control (Active Low)

Write Control (Active Low)

Data Bus/Register Address

Reset Terminal (Active Low)

+3.3 V Power Supply

Digital Ground

No Connect

SPT

17

SPT2110

3/27/98

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