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STPCI2GDY Datasheet(PDF) 40 Page - STMicroelectronics

Part No. STPCI2GDY
Description  X86 Core PC Compatible System-on-Chip for Terminals
Download  111 Pages
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Maker  STMICROELECTRONICS [STMicroelectronics]
Homepage  http://www.st.com
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STPCI2GDY Datasheet(HTML) 40 Page - STMicroelectronics

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STRAP OPTION
40/111
Issue 1.0 - July 24, 2002
3.2. TYPICAL STRAP OPTION
IMPLEMENTATION
Table Table 3-1.shows the detailed Strap options
required to boot the STPC in ISA mode with a
Host Clock Frequency of 66MHz in X2 mode with
internal keyboard/mouse, UARTS and parallel
port enabled.
Signal
Designation
Actual
Settings
Description
MD1
Reserved2
Pull Up
-
MD2
HCLK Speed
Pull down
HCLK = 66MHz
MD3
Pull down
MD[4]
PCI_CLKO Divisor
Pull up
PCICLK = HCLK/2
MD[5]
MCLK Synchro (see Section 3.1.1. )
Pull down
Asynchronous
MD[6]
PCI_CLKO Programming
Pull up
PCICLK PLL Window =
32MHz - 64MHz
MD[7]
Pull down
MD[8]
ISA / PCMCIA / Local Bus
Pull down
ISA Mode
MD[9]
Pull down
MD10
Reserved2
Pull down
-
MD11
Reserved2
Pull down
-
MD14
CPU clock Multiplication
Pull up
X2 Mode
MD15
Reserved2
Pull up
-
MD16
Reserved2
Pull up
-
MD17
PCI_CLKO Divisor
Pull up
PCICLK = HCLK/2
MD18
HCLK Pad Direction
Pull up
Output
MD19
MCLK Pad Direction
Pull up
Output
MD20
DCLK Pad Direction
Pull up
Output
MD21
Reserved2
Pull up
-
MD23
Reserved2
Pull up
-
MD24
HCLK PLL Speed
Pull up
HCLK = 66MHz
MD25
Pull up
MD26
Pull down
MD27
Reserved2
Pull up
-
MD28
Reserved2
Pull up
-
MD29
Reserved2
Pull up
-
MD30
Reserved2
Pull up
-
MD31
Reserved2
Pull up
MD32
Reserved2
Pull down
MD33
Reserved2
Pull up
MD34
Reserved2
Pull down
MD35
Reserved2
Pull down
MD36
Local Bus Boot Device Size
User defined
Not Applicable
MD37
Reserved2
Pull down
-
MD38
Reserved2
Pull down
-
MD40
CPU clock Multiplication
Pull up
X2 mode
MD41
Reserved2
Pull down
-
MD42
Reserved2
Pull up
-
MD 43
Reserved2
Pull down
-
Note1: Strap options on TC/PA[3] and DACK_ENC[2:0]/PA[2:0] are required for all the STPC Atlas Configurations (ISA,
PCMCIA, Local Bus).
Note2: Must be implemented.
Table 3-1. Typical Strap Option Implementation


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