AMD Geode SC1200 Data Book page 52

32579B
3.4.3 Video Port Interface Signals (Continued)
Signal Name Ball No.
VOPD7 D20
VOPD6 A21
VOPD5 C21
VOPD4 B21
VOPD3 D21
VOPD2 B17
VOPD1 D22
VOPD0 A20
VOPCK B18
3.4.4 CRT/TFT Interface Signals
Signal Name Ball No.
DDC_SCL Y1
DDC_SDA Y2
HSYNC A11
VSYNC B11
VREF D16
SETRES B15
On-Chip RAMDAC
RED B12
GREEN A14
BLUE A15
TFT (External DAC) Interface
52
Type Description
O Video Output Port Data. The data is output from the
Video Processor in VESA Video Interface Port Rev 1.1
Task B format.
O Video Output Port Clock. The clock output from the
Video Processor.
Type Description
O DDC Serial Clock. This is the serial clock for the VESA
Display Data Channel interface. It is used for monitor
communications. The DDC2B standard is supported by
this interface.
I/O DDC Serial Data. This is the bidirectional serial data sig-
nal for the VESA Display Data Channel interface. It is
used for monitor communications. The DDC2B standard
is supported by this interface.
O Horizontal Sync
O Vertical Sync
I/O Voltage Reference. Reference voltage for CRT PLL and
DAC. This signal reflects the internal voltage reference. If
internal voltage reference is used (recommended), leave
this ball disconnected. If an external voltage reference is
used, this input is tied to a 1.235V reference.
I Set Resistor. This signal sets the current level for the
RED/GREEN/BLUE analog outputs. Typically, a 464 Ω,
1% resistor is connected between this ball and AV
O Analog Red, Green and Blue
.
SSCRT
AMD Geode™ SC1200/SC1201 Processor Data Book
Signal Definitions
Mux
PD2+TFTD8+
F_AD2
PD1+TFTD7+
F_AD1
PD0+TFTD6+
F_AD0
INIT#+TFTD5+
SMI_O
ERR#+TFTD4+
F_CBE0#
BUSY/WAIT#+
TFTD3+F_C/BE1#
AFD#/DSTRB#+
TFTD2+INTR_O
PD6+TFTD1+
F_AD6
ACK#+TFTDE+
FPCICLK
Mux
IDE_DATA10
IDE_DATA9
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