Intel 31244 PCI-X Manuale Utente
23
3.3
Ball Map By Function
shows the 544 BGA pins mapped by pin function. This diagram is helpful in placing
components around the GD31244 for the layout of a PCB. To simplify routing and minimize the
number of cross traces, keep this layout in mind when placing components on your board. Name
signals, by design, are located on the PBGA package to simplify signal routing and system
implementation.
number of cross traces, keep this layout in mind when placing components on your board. Name
signals, by design, are located on the PBGA package to simplify signal routing and system
implementation.
Figure 5.
PBGA Mapped By Pin Function
B0419-02
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
A
A
B
B
C
C
D
D
E
E
F
F
G
G
H
H
J
J
K
K
L
L
M
M
N
N
P
P
R
R
T
T
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
PCI-X Interface Pins
SERDES section
VIO 3.3V
VSS
VCC is 2.5V
JTAG Section
VSS
32BIT
PCI#
LED3
TX0N
RX0P
TX1N
RX1P
CAP0
CAP1
TX2N
RX2P
TX3N
RX3P
CLKIN
CLKOUT
VSS
VCCREF
VSS
VSS
TXOP
RX0N
TX1P
RX1N
VSS
TX2P
RX2N
TX3P
RX3N
VSS
VSS
VCCREF
VA1
LED2
P_AD32
VCC
VCC
SCS#
VSS
VCC0
VCC1
VSS
VSS
VSS
VSS
TDO
VSS
P_RST# P_INTA#
VSS
LED0
MS_DA
SSCEN
VSS
VCC
TRST#
TCK
VSS
P_AD33
P_
PAR64
VSS
P_REQ# P_AD31 P_GNT#
CLKO
SDI
LED1
TOUT
TEST0
RBIAS
TDI
TMS
P_AD36 P_AD35
VI0
P_AD34
VIO
VCC2
VSS
VCC3
VSS
P_AD28
VIO
P_AD29 P_AD30
P_AD25
VSS
P_AD26 P_AD27
P_AD23 P_IDSEL P_CBE3 P_AD24
P_AD46 P_AD45
VIO
P_AD44
P_AD39 P_AD38
VSS
P_AD37
P_AD43 P_AD42 P_AD41 P_AD40
VSS
VSS
VSS
VSS
VSS
VSS
VIO
VIO
VIO
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VIO
VSS
VIO
VIO
P_AD19 P_AD20 P_AD21 P_AD22
P_AD18
VSS
VCC
VCC
V18A
VIO
P_
IRDY#
P_AD17
P_
TRDY#
P_
DEVSEL#
P_AD16
P_
FRAME#
VSS
P_
SERR#
P_
PERR#
P_CBE2 VCCREF
P_
STOP#
VSS
P_AD13
P_PAR
VSS
P_AD15
VIO
VSS
P_CBE1 P_AD14
VSS
VIO
VIO
P_AD10
P_AD9
VIO
VIO
P_AD12
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
VSS
P_AD4
P_AD11 P_CBE0
VSS
P_CLK
VSS
VSS
P_
REQ64#
P_CBE7
VIO
P_AD6
VA0
VSS
P_AD3
VIO
P_CBE6
P_AD7
P_AD5
CAP3
CAP2
P_AD2
P_
ACK64#
P_CBE5
VIO
VIO
VIO
VIO
P_AD0
VSS
VSS
VIO
P_AD1
VIO
VCCREF
VIO
VCCREF
VIO
VIO
VIO
P_AD8
P_AD54
VCCREF P_AD57
P_CBE4
VSS
P_AD59
P_AD63
VSS
VSS
VIO
VSS
P_AD62 P_AD61
P_AD49 P_AD48
VSS
P_AD47
VCC
VCC
P_AD51 P_AD50
P_AD53 P_AD52
VSS
V18B
VSS
VIO
VCCREF
P_AD56
P_AD55
P_AD58
P_AD60