Showing posts with label 2F. Show all posts
Showing posts with label 2F. Show all posts

Thursday, October 18, 2007

Loongson 2F is to be formally released




On October 12, i found 2 photos showing the motherboard with Loongson 2Fas its heart on Lemote BBS

(http://www.lemote.com/bbs/viewthread.php?tid=10336&extra=page%3D1&page=8,see post #80, #81). Foxsen, the administrator of Lemote BBS, said thatthis is just one of the Loongson 2F's future applications, a homeserver. He decribed the motherboard: "Loongson 2F (the silver chip) +AMD CS5536 south bridge + dual 1000M LAN + Sil3114 Sata + 32MB norflash." This motherboard seems to be a mini-itx, 17cm X 17cm in size,with one IDE in addition to four ESata port and one PCI.

Foxsen appologized to members on Lemote BBS that he couldn't provide anyfurther details of the chip as it is not formally released.

It is said that ST Microelectronics has started Loongson 2F's massproduction. We may expect different kinds of things with 2F inside comeout next year.

Loongson 2F finished tape-out in July and has been get through 2 monthsof heavy test. It consumes 5.6W power at 1GHz, higher than i expected,unfortunately.

Again, thanks to the friend abroad for her help to post this stuff.

Wednesday, May 2, 2007

Loongson 2F is to be taping out

The next member of Loongson 2 family, the 2F is sent to tape-out process on May 2nd, 2007. This is about 3 months later than the developers expected at the beginning of this year.

Improvements:
1. 30% faster clock frequency. We can expect for 1G+ product.
2. Comparing to 2E, 2F can saving up to 40% of the power consumption. Moreover, temperature sensor, frequency steps and other power management functions is available.
3. More integrated: DDR2 controller, 66MHz PCI/100MHz PCI-X controller,
Local IO controller, GPIO, time Interrupt Controller、DMA controller and so on.
4. Smaller: 27mm x 27mm, comparing to 35 x 35 of 2E.
5. Better DFT and DFM to lower costs.