Northwood - 2 Of 2 - EUROCOM L295P A Service Manual

Schematic Diagrams

Northwood - 2 of 2

Sheet 3 of 28
Northwood 2 of 2
V_CORE
[6,14,22] SUSB#
+3V
B - 4 Northwood - 2 of 2 (71-P2970-002A)
HD#[0..63]
[6] HD#[0..63]
L11 10uH_+/-25_0805 Z0301
C83
L10 10uH_+/-25_0805 +
C82 + 22u/10V_1206
AE23
VCCA
22u/10V_1206
Z0302 AD22
VSSA
Z0314 AD20
VCCIOPLL
J1
[6] HREQ#0
REQ0#
K5
[6] HREQ#1 REQ1#
J4
[6] HREQ#2 REQ2#
J3
[6] HREQ#3 REQ3#
H3
[6] HREQ#4
REQ4#
E21
[6] HDB#0 DB#0
G25
[6] HDB#1 DB#1
P26
[6] HDB#2
DB#2
V21
[6] HDB#3
DB#3
TZ0301 AC1
AP0#
TZ0302 V5
AP1#
AD6
[4] FSA
BSEL0
AD5
[4] FSB
BSEL1
F21
[6] HDSTBP#0 DSTBP0#
J23
[6] HDSTBP#1 DSTBP1#
P23
[6] HDSTBP#2
DSTBP2#
W23
[6] HDSTBP#3
DSTBP3#
E22
[6] HDSTBN#0 DSTBN0#
K22
[6] HDSTBN#1 DSTBN1#
R22
[6] HDSTBN#2
DSTBN2#
W22
[6] HDSTBN#3
DSTBN3#
DBR# AE25
DBR#
L5
[6] HADSTB#0 ADSTB0#
R5
[6] HADSTB#1
ADSTB1#
TZ0303 AB2
RSP#
TZ0304 AA3
BINIT#
TZ0305 V6
MCERR#
THERMTRIP# A2
[14,16] THERMTRIP# THERMTRIP#
THERMDA B3
[16] THERMDA THERMDA
C4
THERMDC
C75
3300p_R
THERMDC
[16] THERMDC
R106
V_CORE
200_1%
Max 1.5 inch 15mil
HGTLREF
[6] HGTLREF
CA229
R394 C225
169_1% 0.1u
220p
CLOSE CPU
VCCVID
U6
3 5
EN Vout
+3V
CB1
1 4 CA94
Vin PG
0.1u
1u
R111
CA89
MIC5258
CLOSE CPU 10K
0.1u
Z0312
PRESCOTT/NORTHWOOD INTERFACE
HA#[3..31]
HA#[3..31] [6]
VCCVID
R411
SB5V
681_1%
VID_PWRGD [2]
R110
10K +3V
Z0313 G
Q37
2N7002
R410
G 1K
Q7
2N7002
VRD_EN [27]
CA300
G
Q36 0.1u_R
2N7002
V_CORE [2,4,14,22,27]
+3V [4,5,6,11,12,13,14,15,16,17,19,20,21,22,23,24,26,27,28]
U5B
AB26
CPUSLP# [14]
SLP#
B5
SMI# SMI# [14]
W5
INIT# INIT# [14,21]
C6
A20M# A20M# [14]
AC3 IERR#
IERR#
B6 FERR#
FERR# [14]
FERR#
D1
INTR [14]
LINT0
E5
LINT1 NMI [14]
B2
IGNNE# IGNNE# [14]
Y4
STPCLK# STPCLK# [14]
F1
RS#0 [6]
RS0#
G5
RS1# RS#1 [6]
F4
RS2# RS#2 [6]
H6 BR0#
BR0# BR0# [6]
D2
BPRI# [6]
BPRI#
G4
HLOCK# [6]
LOCK#
J6
TRDY# HTRDY# [6]
E2
DEFER# DEFER# [6]
F3
HIT# HIT# [6]
G1
ADS# [6]
ADS#
G2
BNR# [6]
BNR#
E3
HITM# HITM# [6]
H5
DBSY# DBSY# [6]
H2
DRDY# DRDY# [6]
PROCHOT# [6]
C3 R81 120_1%
V_CORE
PROCHOT#
C1 Z0304 R80 150_1%
TDI
D5 Z0305 R342 51_1%
TDO
F7 Z0306 R340 39.2_1%
TMS
D4 Z0307 R335 27.4_1%
TCK
E6 Z0308 R334 680_1%
TRST#
AB25 CPURST#
RESET# CPURST# [6]
AB23 CPUPWRGD
CPUPWRGD [14]
PWRGOOD
AF22
BCLK0 CPUCLK [4]
AF23
BCLK1 CPUCLK# [4]
AC26
ITPCLK [4]
ITP_CLK0
AD26
ITPCLK# [4]
ITP_CLK1
L24 Z0309 R98 61.9_1%
COMP0
P1 Z0310 R93 61.9_1%
COMP1
PRESCOTT/NORTHWOOD
RN56
VID5 VID0 8
VID5 [27]
VID4 VID1 7
VID4 [22,27]
VID3 VID2 6
VID3 [22,27]
VID2 VID3 5
VID2 [22,27]
VID1
VID1 [22,27]
VID0 VID4 R408
VID0 [22,27]
VID5 R405
CPU SIGNAL TERMINATION
CLOSE TO CPU
DBR# R116
FERR# R422
BR0# R341
CPURST# R107
CPUPWRGD R108
IERR# R404
+3V
8P4R*1K
1
2
3
4
1K
1K
V_CORE
150_R
62_1%
200_1%
62_1%
300_1%
62_1%_R