Chapter 2: ML410 Embedded Development Platform
R
PS/2 Keyboard and Mouse Interface Connector (P2)
The ALi M1535D+ has a built-in PS2/AT keyboard and PS/2 mouse controller. The PS/2
keyboard and mouse ports are connected to the ALi M1535D+ 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.
Table 2-33:
PS/2 Keyboard and Mouse
Signal Name
KDAT
KCLK
MDAT
MCLK
KVCC, MVCC
PS2 Pin (P2)
1B
5B
1C
5C
4B, 4C
Description
Keyboard data
Keyboard clock
Mouse data
Mouse clock
Fuse protected power to keyboard and mouse
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 M1535D+ ROM interface.
Table 2-34 shows the connections between the ALi M1535D+ (U15) ROM signals to the
AM29F040B (U4) flash memory device.
Table 2-34:
ALi M1535D+ Flash Memory Interface
Schematic Net
Name
ROM_WE_N
ROM_OE_N
ROM_D7
ROM_D6
ROM_D5
ROM_D4
ROM_D3
ROM_D2
ROM_D1
ROM_D0
ROM_A18
M1535D+ Pin
(U15)
U14
T14
W19
Y19
V20
W20
Y20
U18
U19
U20
T15
AM29F040B Pin
(U4)
7
32
29
28
27
26
25
23
22
21
9
Description
Active-Low Write Enable
Active-Low Output Enable
Flash Data
Flash Addresses
68
ROM_A17
ROM_A16
ROM_A15
U15
V15
W15
6
10
11
ML410 Embedded Development Platform
UG085 (v1.7.2) December 11, 2008
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