SPC8106 S-MOS Systems, SPC8106 Datasheet - Page 142
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SPC8106
Manufacturer Part Number
SPC8106
Description
LCD/CRT VGA CONTROLLER
Manufacturer
S-MOS Systems
Datasheet
1.SPC8106.pdf
(432 pages)
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bit 0
bits 7-4
bits 3-0
Hardware Functional Specification
0C Configuration Readback Register RO
MD12
Status on
Reset
RO
SP1-100
S-MOS Systems, Inc. • Tel: (408) 922-0200 • Fax: (408) 922-0238 • http://www.smos.com
Mode Enable
AUX[00] bit 6
12-Bit RGB
MD11
Status on
Reset
RO
0
1
LCD Enable
When the LCD Enable bit = 1, LCD display hardware is enabled. When this bit = 0, LCD display
hardware is disabled. This bit will be initialized to 0 on RESET. Note that when LCD only is enabled
(LCD Enable = 1, CRT Enable = 0), the active pixel clock is forced to the CLKI2 input, i.e. 28.322
MHz. This bit works in conjunction with CRT Enable. See the following table.
MD[12:9] Status on Reset
These are read-only bits which may be used for inputting power-up reset information to be read by
software. On the falling edge of the RESET input, the logic values on the MD[12:9] pins are latched
into the chip and then may be read in this register. These bits have no effect in hardware. Internal
pullups on these input pins ensure that if nothing is connected externally to these inputs, then
these register bits will read 1111.
MD[3:0] Status on Reset
These are read-only bits which may be used for inputting power-up reset information to be read by
software. On the falling edge of the RESET input, the logic values on the MD[3:0] pins are latched
into the chip and then may be read in this register. These bits have no effect in hardware. Internal
pullups on these input pins ensure that if nothing is connected externally to these inputs, then
these register bits will read 1111b.
MD10
Status on
Reset
RO
TFT Enable Bit
AUX[00] bit 5
0
1
1
MD9 Status
on Reset
RO
Table 0-55 Display Enable Bits
CRT Enable Bit
AUX[0B] bit 0
X12-SP-001-07
0
1
0
1
0
1
MD3 Status
on Reset
RO
LCD Enable Bit
AUX[0B] bit 1
MD2 Status
on Reset
RO
X
X
X
X
0
1
0
1
MD1 Status
on Reset
RO
LCD DoubleScan mode
12-bit TFT CRT mode /
9-bit TFT CRT mode /
12-bit TFT LCD mode
Standard LCD mode
9-bit TFT LCD mode
Display Mode
DoubleScan
DoubleScan
CRT mode
no display
MD0 Status
on Reset
RO
411-1.0
SPC8106
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