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ML410 Embedded Development Platform
UG085 (v1.7.2) December 11, 2008
Chapter 2:
ML410 Embedded Development Platform
R
GPIO Connector (J5)
There are 15 GPIO pins connecting the ALi to the 24-pin GPIO header (J5). These
can be accessed through the ALi by way of the PCI bus.
Table 2-30
shows the
types and number of GPIO signals available to the user from the ALi South Bridge.
Table 2-31
shows the connections from the ALi, , GPIO signals available at the
GPIO header (J5).
System Management Bus Controller
The SMBus host controller in the supports the ability to communicate with
power-related devices using the SMBus protocol. It provides quick send byte/receive
byte/ write byte/write word/read word/block read/block write command with clock
synchronization function and 10-bit addressing ability. See
“IIC/SMBus Interface,” page
69
for more information regarding the devices that are connected to the SMBus.
Table 2-30:
Type of GPIO Available on Header J5
ALi GPIO Types
Number
Available
Output
5
Input
4
Input/Output
6
Table 2-31:
GPIO Connections on Header J5
Schematic Net
Name
GPIO Pin (J5)
(U15)
I/O Type
GPO_10
21
T3
Output
GPO_29
23
N17
Output
GPO_30
20
N18
Output
GPO_34
22
P18
Output
GPO_35
24
P19
Output
GPI_24
1
M17
Input
GPI_25
3
E9
Input
GPI_34
5
W7
Input
GPI_36
7
U8
Input
GPIO_0
9
Y3
Input/Output
GPIO_1
11
V4
Input/Output
GPIO_2
13
W4
Input/Output
GPIO_3
15
Y4
Input/Output
GPIO_22
17
U6
Input/Output
GPIO_23
19
U5
Input/Output
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