15 programmable controller (pld), 16 cmos ram and rtc, 17 configuration – Endura RADISYS KP915GV User Manual

Page 31: 18 bios

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KP915GV Product Manual

31

2.15

Programmable Controller (PLD)

Programmable logic device to support configurable system functions

Supports software-based updates (including field updates)

Supports customizable logic (by RadiSys, not user customizable)

Option of 128 or 256 macrocell device (256 for enhanced controller)

Controls product write-protect features for BIOS ROM

Allows write-protection via software or permanent protection via controller logic

Supports write-protect jumper covering update of controller logic (override via ICT)

Total of 13 General purpose I/O lines

10 signals that can be programmed as inputs and outputs

Direction control in three groups with 2, 3 and 5 bits (20:21, 15:17, 10:14)

Two signals that are input-only

One signal that is output-only

Support for character-based LCD panel to display BIOS POST messages and other
information. Displays have an 8-bit parallel interface. Displayed text is the BIOS Port 80
codes in the format: “BIOS Code xx”

2.16

CMOS RAM and RTC

256 bytes of CMOS RAM

Lithium cell with >5 years operating life

2.17 Configuration

Majority of configuration is jumper-less and done through BIOS settings

Customer can specify BIOS defaults at manufacture

Operating mode jumper selects normal, configure and recovery modes

Power supply jumper configures the product to operate with a hard-switched power supply that
must be used when the PSU does not provide 5V on the 5V standby pin

Target: jumper-less operation for power supply type

2.18 BIOS

Based on Phoenix Award BIOS

4Mbit firmware hub BIOS ROM

System and (Intel) video BIOS

Intel Ethernet remote boot and PXE code

Fully customizable including video BIOS

ROM can be optionally socketed with write-protect support

Silent boot (boot message hiding, logo visible), headless operation support

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