Signal Definitions (Continued)
2.3 SUBSYSTEM SIGNAL CONNECTIONS
As previously stated, the GXm Integrated Subsystem with
MMX support consists of two chips: the GXm Processor
and the CS5530 I/O companion. Figure 2-4 shows the
signal connections between the processor and the I/O
companion chip.
SYSCLK
SERIALP
IRQ13
GX_CLK
PSERIAL
IRQ13
SMI#
SMI#
PCLK
PCLK
DCLK
DCLK
CRT_HSYNC
CRT_VSYNC
HSYNC
VSYNC
Exclusive
Interconnect
(Note)
PIXEL[17:0]
PIXEL[23:0]
Signals
Not needed if
CRT only (no TFT)
FP_HSYNC
FP_VSYNC
ENA_DISP
VID_VAL
FP_HSYNC
FP_VSYNC
FP_ENA_DISP
VID_VAL
(Do not connect to
any other device)
VID_CLK
VID_CLK
VID_DATA[7:0]
VID_RDY
RESET
VID_DATA[7:0]
VID_RDY
CPU_RST
INTR
INTR
Geode™ CS5530
I/O Companion
Geode™ GXm
Processor
SUSP#
SUSPA#
AD[31:0]
C/BE[3:0]#
PAR
SUSP#
SUSPA#
AD[31:0]
C/BE[3:0]#
PAR
Nonexclusive
Interconnect
Signals
FRAME#
IRDY#
TRDY#
STOP#
LOCK#
DEVSEL#
PERR#
SERR#
REQ0#
GNT0#
FRAME#
IRDY#
TRDY#
STOP#
LOCK#
DEVSEL#
PERR#
SERR#
REQ#
(May also connect
to other circuitry)
GNT#
Note: Refer to Figure 2-5 for interconnection of these lines.
Figure 2-4. Subsystem Signal Connections
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