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ML410 Embedded Development Platform
UG085 (v1.7.2) December 11, 2008
Chapter 2:
ML410 Embedded Development Platform
R
PS/2 Keyboard and Mouse Interface Connector (P2)
The ALi has a built-in PS2/AT keyboard and PS/2 mouse controller. The PS/2
keyboard and mouse ports are connected to the ALi through standard DIN
connectors contained in the P2 connector assembly. In the event of a short circuit by the
keyboard or mouse device, the 5V power provided to these devices is protected by a
resettable fuse, F1.
Table 2-33
shows the PS/2 keyboard and mouse connections to the P2 connector assembly.
Flash ROM (U4)
The ALi South Bridge has a flash memory interface port that supports up to 4 Mb of flash
memory. ML410 platforms provide connectivity to an AM29F040B 4 Mb (512 K x 8 bit)
flash memory (U4) via the ALi ROM interface.
Table 2-34
shows the connections between the ALi (U15) ROM signals to the
AM29F040B (U4) flash memory device.
Table 2-33:
PS/2 Keyboard and Mouse
Signal Name
PS2 Pin (P2)
Description
KDAT
1B
Keyboard data
KCLK
5B
Keyboard clock
MDAT
1C
Mouse data
MCLK
5C
Mouse clock
KVCC, MVCC
4B, 4C
Fuse protected power to keyboard and mouse
Table 2-34:
ALi Flash Memory Interface
Schematic Net
Name
Pin
(U15)
AM29F040B Pin
(U4)
Description
ROM_WE_N
U14
7
Active-Low Write Enable
ROM_OE_N
T14
32
Active-Low Output Enable
ROM_D7
W19
29
Flash Data
ROM_D6
Y19
28
ROM_D5
V20
27
ROM_D4
W20
26
ROM_D3
Y20
25
ROM_D2
U18
23
ROM_D1
U19
22
ROM_D0
U20
21
ROM_A18
T15
9
Flash Addresses
ROM_A17
U15
6
ROM_A16
V15
10
ROM_A15
W15
11
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