FS403 datasheet(13/104 Pages) ETC2

13 / 104 page

FS401, FS403

PRODUCT SPECIFICATION

REV. NO. 1.7

JANUARY 24, 2007

Pin Name

Pin Number

FS401/FS403

Type/Value

Pin Function Description

VGACLKDIV

403 only

x/65

LVTTL

output

A/D clock divided by N. VGACLKIN divided by N for

connection to external phase-locked loop controller.

Polarity selectable.

CLAMP_REF

46/55

LVTTL

output

VGA clock reference output. Clamp output signal.

CLAMP_REF = H, when the internal clamp is active during

the horizontal sync period, HS_IN. CLAMP_REF can be

used for a reference input for an external PLL. Polarity

selectable.

EXADSEL

403 only

x/23

TTL input

Analog/Digital RGB in select. LOW selects internal A/D

converters; HIGH selects external digital R7-0G7-0B7-0 inputs.

If LOW, B7-0 become general purpose outputs. This pin has

an internal pull-down and should be left open if the internal

A/D is desired.

Digital RGB Inputs or OSD/GPO Pins

R7-3

403 only

x/59-56, x/41 TTL input

Digital red inputs. Top 5 bits of 8-bit red input data. No

connection if not used.

R2/OSDEN

403 only

x/40

TTL input

Digital red input/OSD enable. Bit 2 of red input data if

EXADSEL is high. Else, OSD enable pin (high enabled).

No connection if not used.

R1/

TV_HSYNC

403 only

x/39

TTL input/

LVTTL

output

Digital red input/TV_HSYNC. Bit 1 of red input data if

EXADSEL is high. Else, digital horizontal sync for YUV,

RGB/SCART, and progressive video outputs. No

connection if not used.

R0/

TV_VSYNC

403 only

x/38

TTL input/

LVTTL

output

Digital red input/TV_VSYNC. Bit 0 of red input data if

EXADSEL is high. Else, digital vertical sync for YUV,

RGB/SCART, and progressive video outputs. No

connection if not used.

G7/OSDHT

403 only

x/27

TTL input

Digital green input/OSD half tone. Bit 7 of green input

data if EXADSEL is high. Else, OSD half tone input pin. No

connection if not used.

G4/OSDR

403 only

x/26

TTL input

Digital green input/OSD red. Bit 4 of green input data if

EXADSEL is high. Else, OSD red input pin. No connection

if not used.

G5/OSDG

403 only

x/25

TTL input

Digital green input/OSD green. Bit 5 of green input data if

EXADSEL is high. Else, OSD green input pin. No

connection if not used.

G6/OSDB

403 only

x/24

TTL input

Digital green input/OSD blue. Bit 6 of green input data if

EXADSEL is high. Else, OSD blue input pin. No

connection if not used.

G3-0

403 only

x/70-73

TTL input

Digital green input. Bottom 4 bits of 8-bit green input data.

No connection if not used.

B7-0

403 only

x/102-105,

x/120-123

TTL input

Digital blue input. 8-bit blue input data if EXADSEL is

high. GPO if not used (see GPO pin definition below). No

connection if not used.

GPO7-1

x/102,

81/103,

x/104, x/105,

x/120, x/121,

x/122

LVTTL

output

General Purpose Outputs. 2 (FS401) or 8 bits (FS403) of

general purpose outputs set by SIO commands to the GPO

GPO0

96/123

LVTTL

output

General Purpose Output 0. When the internal CPU is

enabled, this bit signals when the frequency of the VGA

input is high or low. Otherwise, it is a normal GPO bit.

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FS403 数据表(PDF) 13 Page - List of Unclassifed Manufacturers

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