SPC8104 S-MOS Systems, SPC8104 Datasheet - Page 258

• Manufacturer Part Number: SPC8104
• Description: VGA LCD CONTROLLER
• Manufacturer: S-MOS Systems

1.2
The SDU8104B0B Rev. 1.0 directly supports the 16-bit ISA-Bus architecture. The SPC8104F0A
has 6 configurable inputs (MD[6:5], MD[3:0]) which are read on power-up. DIP switches are pro-
vided for configuration of each one of these inputs.
LCD Panel Configuration
The BIOS configuration for different LCD panels is done through the state of the MD lines. The
SDU8104B
EV1-6
Configuration DIP Switch Settings
The polarity of the Dip-Switches is defined as (Closed = ’0’ or ’low’).
evaluation board and has been set to ’high’ to support symmetrical DRAM.
Use as the default setting
Jumper Setting:
All JP1-3 must be in the same position for correct operation either all 1-2 or all 2-3.
should be position 2-3)
Use as the default setting
ISA Bus IRQ’s are NOT shared signals. Therefore only one device can be assigned to any one
interrupt signal. If you encounter any contention type problems with IRQ connected to the Bus,
change the jumper position to disconnect it and re-run the specific test causing the problem.
Position 2-3 should be used as default and position 1-2 used for test purposes only.
External 100 K ohm pull-ups have been added to MD[6:5]. MD6 is not user configurable for this
JP4 should only be used for testing of power consumption with no BUS activity (default setting
Switch
SW1-1
SW1-2
SW1-3
SW1-4
SW1-6
SW1-7 SUSPEND#
SW1-8
JP1
JP2
JP3
JP4
JP5
Installation and Configuration
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
0B
Rev 1.0 ISA Bus Evaluation Board
Signal
DOZE#
16-Bit BUS Support
16-Bit BUS Support
16-Bit BUS Support
CPU BUS tri-stated
Buffered IRQ connected to Bus
MD0
MD1
MD2
MD3
MD5
LCD Panel Config bit 0
LCD Panel Config bit 1
LCD Panel Config bit 2
LCD Panel Config bit 3
LCD Signal State in Suspend Mode: Hi-
Z
SUSPEND# Enabled
DOZE# Enabled
1-2
Closed
8-bit BUS Support
8-bit BUS Support
8-Bit BUS Support
CPU BUS Enabled
Buffered IRQ not connected to Bus
see table below
see table below
see table below
see table below
LCD Signal State in Suspend Mode: Low
SUSPEND# Disabled
DOZE# Disabled
2-3
Open
412-1.0
SPC8104