Datasheet

Register and Memory Mapping
Intel® Xeon® Processor D-1500 Product Family 183
Datasheet - Volume 1 of 4: Integrated Platform Controller Hub
March 2015
Bold Register bits that are highlighted in bold text indicate that the
bit is implemented in Intel® Xeon® Processor D-1500 Product
Family. Register bits that are not implemented or are hardwired
will remain in plain text.
4.1 PCI Devices and Functions
Intel® Xeon® Processor D-1500 Product Family incorporates a variety of PCI devices
and functions, as shown in Ta b l e 4- 1 .
Device Functions can individually be disabled. The integrated Gigabit Ethernet
controller will be disabled if no Platform LAN Connect component is detected (See
Section 3.3). When a function is disabled, it does not appear at all to the software. A
disabled function will not respond to any register reads or writes, insuring that these
devices appear hidden to software.
Notes:
1. The PCI-to-LPC bridge contains registers that control LPC, Power Management, System Management,
GPIO, Processor Interface, RTC, Interrupts, Timers, and DMA.
2. SATA controller 2 (D31:F5) is only visible when D31:F2 CC.SCC=01h.
3. Prior to BIOS initialization of Intel® Xeon® Processor D-1500 Product Family USB subsystem, the EHCI
controller will appear as Function 7. After BIOS initialization, the EHCI controllers will be Function 0.
4. This table shows the default PCI Express* Function Number-to-Root Port mapping. Function numbers for a
given root port are assignable through the “Root Port Function Number and Hide for PCI Express Root
Ports” register (RCBA+0404h).
Table 4-1. PCI Devices and Functions
Bus:Device:Function Function Description
Bus 0:Device 31:Function 0 LPC Controller
1
Bus 0:Device 31:Function 2 SATA Controller #1
Bus 0:Device 31:Function 3 SMBus Controller
Bus 0:Device 31:Function 5 SATA Controller #2
2
Bus 0:Device 31:Function 6 Thermal Subsystem
Bus 0:Device 29:Function 0
3
USB EHCI Controller #1
Bus 0:Device 28:Function 0 PCI Express* Port 1
Bus 0:Device 28:Function 1 PCI Express Port 2
Bus 0:Device 28:Function 2 PCI Express Port 3
Bus 0:Device 28:Function 3 PCI Express Port 4
Bus 0:Device 28:Function 4 PCI Express Port 5
Bus 0:Device 28:Function 5 PCI Express Port 6
Bus 0:Device 28:Function 6 PCI Express Port 7
Bus 0:Device 28:Function 7 PCI Express Port 8
Bus 0:Device 25:Function 0 Gigabit Ethernet Controller
Bus 0:Device 22:Function 0 Intel
®
Management Engine Interface #1
Bus 0:Device 22:Function 1 Intel Management Engine Interface #2
Bus 0:Device 22:Function 2 IDE-R
Bus 0:Device 22:Function 3 KT
Bus 0:Device 20:Function 0 xHCI Controller