SPC8106 S-MOS Systems, SPC8106 Datasheet - Page 86

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

Ty = VSYNC# period (typically 14.3 ms or 16.7 ms, depending on video mode)
Tx= HSYNC# period (typically 31.8 s)
Hardware Functional Specification
Symbol
SP1-44
t3a
t3b
t1
t2
t4
t5
t6
t7
t8
Power Save Register IOW# negated (valid Power Save
Mode set) to IREFEN#, D477 driven high, and RS2, OL0,
OL1, OL23, BLANK#, HSYNC#, VSYNC# driven low.
Power Save Register IOW# command negated (return to
active mode) to IREFEN#, D477 driven low, and RS2, OL0,
OL1, OL23, BLANK#, HSYNC#, VSYNC# active.
IREFEN# negated to PD[7:0] inactive
IREFEN# negated to PD[7:0] inactive
(Power Save Modes 3,4 only)
IREFEN# asserted to PD[7:0] active
IREFEN# negated to PCLK halted
(Power Save Modes 3,4 only)
IREFEN# asserted to PCLK active
(Power Save Modes 3,4 only)
IREFEN# negated to LCAS#, UCAS# asserted (to initialize
DRAM self-refresh mode, Power Save Mode 4 only)
IREFEN# asserted to RAS#, LCAS#, UCAS# negated
(terminate DRAM self-refresh mode, Power Save Mode 4
only)
S-MOS Systems, Inc. • Tel: [phone] • Fax: [phone] • http://www.smos.com
Table 0-32 Power Save Mode CRT Signal Timing
Parameter
X12-SP-001-07
Min
2Ty
Ts
Typ
3Ty+4Ts+
4Ts+20
40Ts
20Ts
80Tx
20Ts
20Ts
10Ts
Max
20
Units
ms
411-1.0
ns
ns
ns
ns
ns
ns
ns
ns
SPC8106