Datasheet
PanelBus
SLDS119C - MARCH 2000 − REVISED OCTOBER 2003
13
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TFP101A incorporates HSYNC jitter immunity (continued
HSYNC Shift by ± 1 Clock
ODCK
HSYNC IN
DE
HSYNC OUT
Figure 16. HSYNC Regeneration Timing Diagram
TFP101/101A modes of operation
The TFP101/101A provides systems design flexibility and value by providing the system designer with
configurable options or modes of operation to support varying system architectures. The following table outlines
the various panel modes that can be supported along with appropriate external control pin settings.
PANEL PIXEL RATE
ODCK LATCH
EDGE
ODCK DFO PIXS OCK_INV
TFT or 16-bit DSTN 1 pix/clock Falling Free run 0 0 0
TFT or 16-bit DSTN 1 pix/clock Rising Free run 0 0 1
TFT 2 pix/clock Falling Free run 0 1 0
TFT 2 pix/clock Rising Free run 0 1 1
24-bit DSTN 1 pix/clock Falling Gated low 1 0 0
NONE 1 pix/clock Rising Gated low 1 0 1
24-bit DSTN 2 pix/clock Falling Gated low 1 1 0
24-bit DSTN 2 pix/clock Rising Gated low 1 1 1
TFP101/101A output driver configurations
The TFP101/101A provides flexibility by offering various output driver features that can be used to optimize
power consumption, ground-bounce and power-supply noise. The following sections outline the output driver
features and their effects.
Output driver power down (PDO
= low), Pulling PDO low will place all the output drivers, except CTL1 and
SCDT, into a high-impedance state. The SCDT output which indicates link-disabled or link-inactive can be tied
directly to the PDO
input to disable the output drivers when the link is inactive or when the cable is disconnected.
An internal pullup on the PDO
pin will default the TFP101/101A to the normal nonpower down output drive mode
if left unconnected.
Drive Strength (ST = high for high drive strength, ST=low for low drive strength.) The TFP101/101A allows
for selectable output drive strength on the data, control and ODCK outputs. See the dc specifications table for
the values of I
OH
and I
OL
current drives for a given ST state. The high output strength offers approximately two
times the drive as the low output drive strength.
Not Recommended for New Designs