Ps/2 Keyboard And Mouse Interface Connector (P2); Flash Rom (U4) - Xilinx ML410 User Manual

Chapter 2: ML410 Embedded Development Platform
68
Downloaded from Elcodis.com electronic components distributor

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

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
ROM_A17
ROM_A16
ROM_A15
PS2 Pin (P2)
1B Keyboard data
5B Keyboard clock
1C Mouse data
5C Mouse clock
4B, 4C Fuse protected power to keyboard and mouse
M1535D+ Pin AM29F040B Pin
(U15) (U4)
U14 7
T14 32
W19 29
Y19 28
V20 27
W20 26
Y20 25
U18 23
U19 22
U20 21
T15 9
U15 6
V15 10
W15 11
www.xilinx.com
Description
Description
Active-Low Write Enable
Active-Low Output Enable
Flash Data
Flash Addresses
ML410 Embedded Development Platform
UG085 (v1.7.2) December 11, 2008
R