SPC8106 S-MOS Systems, SPC8106 Datasheet - Page 385

• Manufacturer Part Number: SPC8106
• Description: LCD/CRT VGA CONTROLLER
• Manufacturer: S-MOS Systems

The SDU8106B0E is a 16-bit ISA I/O card. To restrict bus transactions to 8-bits only, set MD4 to
the closed position. For 16-bit width, open MD4.
When SW1-6 is set to the open position, the SPC8106 will operate normally. When SW1-6 is set
to the closed position, the /SUSPEND line is pulled low and the SPC8106 enters hardware power
save mode. This DIP switch is provided for testing purposes only.
The SDU8106B0E is assembled with one 256Kx16 DRAM, SMD, SOJ package. The DRAM will
have either a symmetrical architecture (9 rows x 9 columns; 2 / CAS signals) or an asymmetrical
architecture (10 rows x 8 columns; 2 /WE signals). Open the switch at MD6 for symmetrical archi-
tecture; close the switch for asymmetrical architecture.
For 256 cycle / 32 ms refresh rate DRAM open the switch at MD10; close it for 256 cycle/ 4 ms
refresh rate.
When MD7 is set to the open position, a 16-bit LCD interface is supported through an external
latch (JP4 must be set to position 1-2 and the 16-pin DIP shunt at U9 must be removed). When
MD7 is set to the closed position, a 16-bit LCD interface is directly supported by the SPC8106
(JP4 must be set to position 2-3 and the DIP shunt at U9 must be installed).
The SPC8106 can operate with 5.0 volt or 3.3 volt core operating voltage. To select 5.0 volt, open
the switch at MD8; to select 3.3 volt, close the switch. (Not supported when using the
SPC8108F0C.)
SPC8106
Although the SPC8106 does support 12-bit active matrix TFT panels and 12-bit RGB displays,
this board design does not provide all the necessary signals to the LCD connector (J6). If 12-bit
support is required, refer to Table 2-5, “SDU8106B0E LCD Connector J6 Pinout,” on page 11 for
pin mapping.
MD4 ISA Port Width
SW1-6 Test Hardware Power Save Mode
MD6 and MD10 Video DRAM Configuration
MD7 16-Bit LCD Interface Support
While directly supporting a 16-bit LCD interface, the SPC8106 will not support a CRT. See
“SDU8106B0E Rev. 1.0 Schematic Diagrams” on page 16.
MD8 Core Operating Voltage
411-1.0
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
X12-AN-001-01
SDU8106B
0E
Rev. 1.0 Evaluation Board User Manual
EV1-9