Chapter 3 Signal Descriptions - AMD Vega 10 Data Book

This section describes the signals of "Vega 10".
The following conventions are used:
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To go to a topic of interest, use the following list of linked cross-references:
• Pin Assignments (p. 20)
• PCI Express® Bus Interface (p. 21)
• Memory Interface (HBM) (p. 22)
• Display Configuration Overview (p. 23)
• Integrated HDMI™/TMDS Interface (p. 23)
• DisplayPort (p. 24)
• Hardware I2 C Interface (p. 26)
• Serial Flash Interface (p. 26)
• General Purpose I/O Interface (p. 27)
• AMD SVI2 Master Interface (p. 29)
• Panel Control Interface (p. 29)
• Global Swap Lock on Multiple GPUs (p. 30)
• Display Identification Interface (p. 31)
• Test/JTAG Interface (p. 32)
• Debug Port (p. 33)
• Thermal Information and Management Interface (p. 33)
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All active low signals are shown with the suffix "B", such as CASA0B.
"PD" denotes a permanent internal pull down. "PD-register" denotes an internal
pull down which is register controlled, and by default is turned off. "PD-reset"
denotes an internal pull down which is register controlled, and by default is
turned on. "PD-reset" also denotes that the internal pull down is active during
reset. "PD" or "PD-reset" is not relevant when the pins are in output modes.
To designate a group of pins that have the same pin name but are distinguished
by a trailing number only, such as QSA_0, QSA_1, or QSA_2, the abbreviation
"Pin name[y:x]" is used. For example, QSA_[7:0] means pins QSA_7 to QSA_0.
In the "Vega 10" pin assignment:
• NC or NC_*: Pins marked as NC are free pins that have no electrical
connection on the GPU package.
• RSVD: These pins should float (i.e., no electrical connection) on the PCB.
Signal Descriptions
3
"Vega 10" Databook
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