Design Guide

Intel Pentium M/Celeron M Front Side Bus Design Guidelines
R
48 Intel
®
855GM/855GME Chipset Platform Design Guide
Signal
Group
CPU
Signal
Name
CPU
Package
Length
(mils)
GMCH
Signal Name
GMCH
Package
Length
(mils)
Signal
Group
CPU
Signal
Name
CPU
Package
Length
(mils)
GMCH
Signal Name
GMCH
Package
Length
(mils)
DSTBP[2]# 661 HDSTBP[2]# 502 DSTBP[3]# 758 HDSTBP[3]# 463
DSTBN[2]# 661 HDSTBN[2]# 538 DSTBN[3]# 758 H DSTBN[3]# 505
REQ4# 616 HREQ4# 276 A31# 773 HA31# 617
REQ3# 616 HREQ3# 383 A30# 773 HA30# 484
REQ2# 616 HREQ2# 247 A29# 773 HA29# 558
REQ1# 616 HREQ1# 378 A28# 773 HA28# 579
REQ0# 616 HREQ0# 569 A27# 773 HA27# 631
A16# 616 HA16# 491 A26# 773 HA26# 556
A15# 616 HA15# 375 A25# 773 HA25# 535
A14# 616 HA14# 562 A24# 773 HA24# 353
A13# 616 HA13# 501 A23# 773 HA23# 382
A12# 616 HA12# 522 A22# 773 HA22# 545
A11# 616 HA11# 566 A21# 773 HA21# 429
A10# 616 HA10# 560 A20# 773 HA20# 414
A9# 616 HA9# 327 A19# 773 HA19# 284
A8# 616 HA8# 333 A18# 773 HA18# 389
A7# 616 HA7# 274 A17# 773 HA17# 457
A6# 616 HA6# 523
Addr
Group
2
ADSTB[1]# 773 HADSTB[1]# 504
A5# 616 HA5# 551 BCLK0 447 BCLK 1138
A4# 616 HA4# 352
Host
Clocks
BCLK1 447 BCLK# 1145
A3# 616 HA3# 468
Addr
Group
1
ADSTB[0]# 616 HADSTB[0]# 419