FS450, FS451
PRELIMINARY PRODUCT DESCRIPTION
JUNE, 2000, VERSION 1.2
13
COPYRIGHT
ó
1999,2000 FOCUS ENHANCEMENTS, INC.
PRELIMINARY INFORMATION
5. Pin Descriptions
Pin
Name
Pin
Number
Type/Value
Pin Function Description
Clocks
VGA_CKOUT
31
GTLP output
(open drain)
LVTTL output
VGA Clock Output.
Clock to GCC TVCLKIN. Synthesized
from TV_CKIN. 27 to 85 MHz range.
VGA Clock Output.
Clock to GCC TVCLKIN. Synthesized
from TV_CKIN. 27 to 85 MHz range.
VGA Clock Input Positive Edge.
Clock from GCC
CLKOUT, buffered form of VGA_CKOUT. Used to latch rising
edge RGB data.
VGA Clock Input Negative Edge.
Clock from GCC
CLKOUT, buffered form of VGA_CKOUT. Used to latch
negative edge RGB data.
Television Clock Input.
Clock for the CCIR 656 I/O and the
video encoder. 27 MHz.
Television Clock XTAL Output.
Buffered version of
TV_CKIN. For use with a 27 MHz crystal.
HSYNC Output.
Output from FS450 to GCC to support slave
mode operation.
VSYNC Output.
Output from FS450 to GCC to support slave
mode operation.
VGA_CKOUTTL
39
VGA_PCKIN
65
GTLP input
VGA_NCKIN
64
GTLP input
TV_CKIN
1
LVTTL input
XTAL
2
LVTTL output
HSYNC_OUT
71
LVTTL output
VSYNC_OUT
68
LVTTL output
Global Controls and Reserved Pins
RESET
28
TTL input
(pull down)
TTL input
(ground)
LVTTL output
(leave open)
Reset.
Active Low. Resets internal state machines and
initializes default register values.
Reserved Inputs.
Connect to VSS.
Reserved
5,29,30
Reserved
6,20,21,
34,35,100
Reserved Outputs.
Do not connect.
Digital RGB Inputs
P11-P0
63,62,60,5
9,58,57,54
,53,52,51,
49,48
36,37,40,4
1,42,43
55
GTLP input
Digital GTLP port input.
Digital video input, multiplexed or
non-multiplexed. Connects to GCC's digital video out.
E5-E0
GTLP input
Digital GTLP port input.
Non-multiplexed extended digital
video input. Connects to GCC's digital video out.
Digital GTLP Reference input.
Voltage threshold reference
for GTLP inputs. Reference is 1.0 volts.
Digital HSYNC VGA input.
Connects to GCC TVHSYNC.
Digital VSYNC VGA input.
Connects to GCC TVVSYNC.
Digital BLANK VGA input.
True outside of GCC active
area. Connects to GCC BLANK#.
GTL_REF
GTLP REF
HSYNC_IN
VSYNC_IN
BLANK
47
46
44
GTLP input
GTLP input
GTLP input