Circuit Descriptions, Abbreviation List, and IC Data Sheets
EN 160 BJ3.0E PA9.
9.11.11 Diagram B8, ISP1561BM (IC 7N00)
Figure 9-20 Internal block diagram and pin configuration
Block Diagram
Pin Configuration
F_15400_136.eps
240505
89
87
18
19
12315
4
88
92 95 91 90 102 103
ISP1561BM
PCI-bus
XTAL1
XTAL2
RAM
OHCI (FUNCTION 0)
RAM
OHCI (FUNCTION 1)
RAM
EHCI (FUNCTION 2)
ORIGINAL
ATX
Hi-SPEED
ATX
ATX1
CONFIGURATION SPACE
PCI CORE
PCI MASTER
PCI SLAVE
CONFIGURATION FUNCTION 0
CONFIGURATION FUNCTION 1
CONFIGURATION FUNCTION 2
XOSC
POR
VDD_DETECT
AD[31:0]
C/BE#[3:0]
REQ#
GNT#
IDSEL
INTA#
FRAME#
DEVSEL#
IRDY#
CLKRUN#
PAR
PERR#
SERR#
TRDY#
STOP#
RST#
GLOBAL CONTROL
PORT ROUTER
SMI# SEL48M SCL SDA
V
DD
OC1
AMB1
GRN1
GL1
PWE1
DM1 DP1
OC3
AMB3
GRN3
GL3
PWE3
DM3
DP3
OC2
AMB2
GRN2
GL2
PWE2
OC4
AMB4
GRN4
GL4
PWE4
DM2
DP2
DM4 DP4
IRQ1
IRQ12
KBIRQ1
MUIRQ12
A20OUT
legacy keyboard and mouse support
SEL2PORTS
AV
AUX_PLL
AV
AUX
V
AUX
RREF
CORERESET
105 113 114 112 106 116 117
ORIGINAL
ATX
Hi-SPEED
ATX
ATX3
96 99 100 98 97 109 110
ORIGINAL
ATX
Hi-SPEED
ATX
ATX2
119
94
107
101
11
13
12
8
7
9
126 127 125 120 122 123
ORIGINAL
ATX
Hi-SPEED
ATX
ATX4
PME#
CLK
GND_RREF
AGND
DGND
MBL340
ISP1561BM
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
SEL48M
SCL
SDA
PME#
V
AUX
DGND
IRQ1
IRQ12
SEL2PORTS
V
DD
A20OUT
KBIRQ1
MUIRQ12
DGND
SMI#
INTA#
V
DD
RST#
CLK
GNT#
DGND
REQ#
AD[31]
AD[30]
V
DD
AD[29]
AD[28]
AD[27]
DGND
AD[26]
AD[25]
AD[24]
OC2
GRN1
GND_RREF
AV
AUX
AMB1
GL1
PWE1
OC1
XTAL2
XTAL1
DGND
V
AUX
AD[0]
DGND
AD[1]
AD[2]
V
DD
AD[3]
AD[4]
AD[5]
DGND
AD[6]
AD[7]
V
DD
C/BE#[0]
AD[8]
AD[9]
DGND
AD[10]
AD[11]
AD[12]
V
DD
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
33
34
35
36
37
38
122
121
120
119
118
117
116
115
114
113
112
111
110
109
108
107
106
105
104
103
102
101
100
99
98
97
128
127
126
125
124
123
DM4
AV
AUX
PWE4
OC4
AGND
DP3
DM3
AV
AUX
GRN3
AMB3
GL3
AGND
DP2
DM2
AV
AUX
RREF
PWE3
OC3
AGND
DP1
DM1
AV
AUX_PLL
GRN2
AMB2
GL2
PWE2
DGND
GRN4
AMB4
GL4
AGND
DP4
AD[21]
AD[20]
V
DD
AD[19]
AD[18]
AD[17]
DGND
AD[16]
C/BE#[2]
FRAME#
V
DD
IRDY#
TRDY#
DEVSEL#
DGND
STOP#
CLKRUN#
PERR#
V
DD
SERR#
PAR
C/BE#[1]
DGND
AD[15]
AD[14]
AD[13]
V
D
D
C/BE#[3]
IDSEL
AD[23]
DGND
AD[22]
90
89
88
87
86
85
84
83
82
81
96
95
94
93
92
91
80
79
78
77
76
75
74
73
72
71
70
69
68
67
66
65
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