46136 AMD RX881 Databook 1.40
© 2011 Advanced Micro Devices, Inc.
3-4
Proprietary
Interface Block Diagram
3.2
Interface Block Diagram
Figure 3-3 shows the different interfaces on the RX881. Interface names in
blue
are hyperlinks to the corresponding
sections in this chapter.
Figure 3-3 RX881 Interface Block Diagram
HT_RXCAD[15:0]P, HT_RXCAD[15:0]N
HT_RXCLK[1:0]P, HT_RXCLK[1:0]N
HT_RXCTL[1:0]P, HT_RXCTL[1:0]N
HT_TXCTL[1:0]P, HT_TXCTL[1:0]N
HT_RXCALP, HT_RXCALN
HT_TXCALP, HT_TXCALN
HT_TXCLK[1:0]P, HT_TXCLK[1:0]N
HT_TXCAD[15:0]P, HT_TXCAD[15:0]N
SB_TX[3:0]P, SB_TX[3:0]N
SB_RX[3:0]P, SB_RX[3:0]N
GFX_TX[15:0]P, GFX_TX[15:0]N
GFX_RX[15:0]P, GFX_RX[15:0]N
AVSSQ
TESTMODE
THERMALDIDOE_N,
SYSRESET#
POWERGOOD
VDDLT33
VDDC
PLLVSS
THERMALDIODE_P
HyperTransport™
Interface
A-Link Express
II Interface
Power
Management
Interface
Misc. Signals
PCIe
®
External
Graphics or
TMDS
Interface
Clock
Interface
Power
Grounds
VDDHTRX
AVSSDI
PCIe
Interface
for General
Purpose
External
Devices
GPP_TX[5:0]P, GPP_TX[5:0]N
GPP_RX[5:0]P, GPP_RX[5:0]N
PCE_CALRP
Misc. PCIe
Signals
PCE_CALRN
VSS
LDTSTOP#
ALLOW_LDTSTOP
STRP_DATA
IOPLLVDD
AVDD
AVDDDI
VDDLTP18
VDDLT18
AVDDQ
IOPLLVSS
VSSAPCIE
VSSAHT
VDD_MEM
IOPLLVDD18
PLLVDD
PLLVDD18
VDDA18HTPLL
VDD33
VDDHT
VDDA18PCIEPLL
VDDA18PCIE
VDD18_MEM
VDD18
VDDHTTX
GPIO[4:2]
GPPSB_REFCLKP, GPPSB_REFCLKN
HT_REFCLKP, HT_REFCLKN
GFX_REFCLKP, GFX_REFCLKN
REFCLK_N, REFCLK_P
GPP_REFCLKP, GPP_REFCLKN
SUS_STAT#
VSSLTP18
MEM_VREF
DAC_HSYNC
DAC_VSYNC
VSSLT