SC2200 NSC [National Semiconductor], SC2200 Datasheet - Page 18

• Manufacturer Part Number: SC2200
• Description: Thin Client On a Chip
• Manufacturer: NSC [National Semiconductor]

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2.0
This section defines the signals and describes the external
interface of the SC2200. Figure 2-1 shows the signals
organized by their functional groups. Where signals are
multiplexed, the default signal name is listed first and is
separated by a plus sign (+). A slash (/) in a signal name
means that the function is always enabled and available
(i.e., cycle multiplexed).
The remaining subsections of this chapter describe:
• Section 2.1 "Ball Assignments": Provides a ball assign-
Note:
ment diagram and tables listing the signals sorted
ACCESS.bus
TFT Interface
Signal Definitions
Parallel Port/
Straps are not the default signal, shown with system signals for reader convenience. However, also listed in figure with the
appropriate functional group.
Video Port
Interface
Interface
Interface
Interface
Memory
System
POR#
X32I
X32O
X27I
X27O
PCIRST#
BOOT16+ROMCS#
LPC_ROM+PCICLK1
TFT_PRSNT+SDATA_OUT
FPCI_MON+PCICLK0
DID0+GNT0#, DID1+GNT1#
MD[63:0]
MA[12:0]
BA[1:0]
CS[1:0]#
RASA#
CASA#
WEA#
DQM[7:0]
CKEA
SDCLK[3:0]
SDCLK_IN
SDCLK_OUT
AB1C+GPIO20+DOCCS#
AB1D+GPIO1+IOCS1#
GPIO12+AB2C
GPIO13+AB2D
ACK#+TFTDE
AFD#/DSTRB#+TFTD2
BUSY/WAIT#+TFTD3
ERR#+TFTD4
INIT#+TFTD5
PD7+TFTD13
PD6+TFTD1
PD[5:0]+TFTD[11:6]
PE+TFTD14
SLCT+TFTD15
SLIN#/ASTRB#+TFTD16
STB#/WRITE#+TFTD17
VPD[7:0]
VPCKIN
Figure 2-1. Signal Groups
Geode™
SC2200
18
Straps
• Section 2.2 "Strap Options": Several balls are read at
• Section 2.3 "Multiplexing Configuration": Lists multi-
• Section 2.4 "Signal Descriptions": Detailed descriptions
according to ball number and alphabetically by signal
name.
power-up that set up the state of the SC2200. This
section provides details regarding those balls.
plexing options and their configurations.
of each signal according to functional group.
IDE_DATA4+FP_VDD_ON
IDE_DATA10+DDC_SCL
IDE_DATA9+DDC_SDA
IDE_DATA14+TFTD17
IDE_DATA13+TFTD15
IDE_DATA12+TFTD13
IDE_DATA11+GPIO41
IDE_DATA5+CLK27M
IDE_DACK0#+TFTD0
IDE_DATA15+TFTD7
IDE_DATA8+GPIO40
IDE_DATA3+TFTD12
IDE_DATA2+TFTD14
IDE_DATA1+TFTD16
RED, GREEN, BLUE
IDE_ADDR2+TFTD4
IDE_ADDR1+TFTD2
IDE_ADDR0+TFTD3
IDE_IOR0#+TFTD10
IDE_RST#+TFTDCK
IDE_IOW0#+TFTD9
IDE_DATA0+TFTD6
IDE_IORDY0+TFTD11
IDE_DATA7+INTD#
IDE_CS1#+TFTDE
IDE_CS0#+TFTD5
IDE_DATA6+IRQ9
IDE_DREQ0+TFTD8
IRQ14+TFTD1
SETRES
HSYNC
VSYNC
VREF
IDE/TFT
Interface
CRT
Interface
Revision 3.0