1 pch i/o controller features, Functional description – Artesyn ATCA-7470 Installation and Use (October 2014) User Manual
Page 126

Functional Description
ATCA-7470 Installation and Use (6806800P15K)
126
5.4.1
PCH I/O Controller Features
PCH I/O Controller features are as follows:
X4 PCIe Gen1 (2.5GT/s) to Zone 3
8237 DMA controller
8254 based Counter Timer/timers
8259 Interrupt Controllers PIC (D31:F0)
I/O APIC controller (D31:F0)
Serial Interrupt (D31:F0)
RTC with 256-byte battery-backed SRAM (D31:F0) (D31:F7)
Processor Interface (D31:F0) including Thermtrip input and A20GATE, INIT3_3V,
CPUPWRGD, PMSYNC#, PECI
2 x COM 16550 compatible UART up to 115Kbit/sec: usable on Faceplate, RTM, Serial Over
LAN support (SMB Pass through)
Two stage Watchdog timer (WDT) (D31:F7)
SPI Interface (Boot Flash): up to two devices 20 + 33MHz
LPC Interface
Two serial ATA (SATA) controllers (D31:D2 for AHCI mode) and (D31:F5 Native IDE mode)
for up to 6 physical SATA ports
Six USB 2.0 interfaces through one EHCI host controller (D29:F0)
Power management support (D31:F0) including ACPI S3 state support (suspend to RAM)
S4 Suspend to disk) and G2/S5 state (SOFF) soft off as well as Power failure detection and
Management Engine Power Management support.
High Precision Event Timers (HPET)
System TCO (total cost of ownership) Reduction circuits
SMBus Host controller (D31:F3) and SMLINK1 interface for access from external Host.
General purpose I/O pins (D31:F0)