Tmds Interface Multiplexed On The Pci Express® Graphics Lanes; Displayport™ Interface; Amd 780E Databook - AMD 780E Technical Reference Manual

Table 3-10 LVTM Interface in TMDS Mode (Continued)
Pin Name
TXOUT_U1N
TXOUT_U1P
TXOUT_U2N
TXOUT_U2P
TXOUT_U3N
TXOUT_U3P
TXCLK_LN
TXCLK_LP
TXCLK_UN
TXCLK_UP
3.9 TMDS Interface Multiplexed on the PCI Express
The RS780E supports a dual-link TMDS interface, enabling DVI/HDMI™, which is multiplexed on the PCI-E external
graphics lanes.
HDMI is enabled only through the single-link mode.
Graphics Interface,"
signals.
Table 3-11 TMDS Interface Multiplexed on the PCI Express
Pin Name
GFX_TX0P
GFX_TX0N
GFX_TX1P
GFX_TX1N
GFX_TX2P
GFX_TX2N
GFX_TX3P
GFX_TX3N
GFX_TX4P
GFX_TX4N
GFX_TX5P
GFX_TX5N
GFX_TX6P
GFX_TX6N
3.10 DisplayPort™ Interface
The RS780E supports a maximum two DisplayPort™ channels through signals multiplexed on the PCI-E graphics
interface. Different implementations are possible, depending on the system configuration.
possibility, which uses the lower eight lanes of the interface for two DisplayPort outputs. For more explanations, please
refer to RS780 DisplayPort Implementation Details (AN_RS780A5).

45732 AMD 780E Databook 3.10

3-10
TMDS
Power
Functional Type
Domain
Name
TX5M O VDDLT18
TX5P O VDDLT18
– O VDDLT18
– O VDDLT18
– O VDDLT18
– O VDDLT18
TXCM O VDDLT18
TXCP O VDDLT18
– O VDDLT18
– O VDDLT18
shows the multiplexing relationships between the PCI-E external graphics signals and the TMDS
Ball
TMDS Function
Reference
A5 TX2P - 1st Link Red+
B5 TX2M - 1st Link Red-
A4 TX1P - 1st Link Green+
B4 TX1M - 1st Link Green-
C3 TX0P - 1st Link Blue+
B2 TX0M- 1st Link Blue -
D1 TXCP - Clock+
D2 TXCM - Clock-
E2 TX5P- 2nd Link Red+
E1 TX5M - 2nd Link Red-
F4 TX4P- 2nd Link Green+
F3 TX4M - 2nd Link Green-
F1 TX3P - 2nd Link Blue+
F2 TX3M - 2nd Link Blue-
TMDS Interface Multiplexed on the PCI Express® Graphics Lanes
Ground Integrated
Domain Termination
TMDS data channel 5 (-). The channel is only used
VSSLT None in DVI dual-link mode and is not used for HDMI
support.
TMDS data channel 5 (+). The channel is only used
VSSLT None in DVI dual-link mode and is not used for HDMI
support.
VSSLT None Unused. NC.
VSSLT None Unused. NC.
VSSLT None Unused. NC.
VSSLT None Unused. NC.
VSSLT None TMDS clock channel (-)
VSSLT None TMDS clock channel (+)
VSSLT None Unused. NC.
VSSLT None Unused. NC.
Graphics Lanes
®
Table 3-11, "TMDS Interface Multiplexed on the PCI Express®
®
Graphics Interface
Functional Description
Table 3-11 shows only one
© 2009 Advanced Micro Devices, Inc.
Proprietary