STPCI2 STMicroelectronics, STPCI2 Datasheet - Page 33

• Manufacturer Part Number: STPCI2
• Description: STPC ATLAS DATASHEET - X86 CORE PC COMPATIBLE SYS
• Manufacturer: STMicroelectronics

3. STRAP OPTION
This chapter defines the STPC Atlas Strap
Options and their locations. Some strap options
are left programmable for future versions of
Note
PCMCIA, Local Bus).
Note
Signal
MD 43
MD[4]
MD[5]
MD[6]
MD[7]
MD[8]
MD[9]
MD10
MD11
MD14
MD15
MD16
MD17
MD18
MD19
MD20
MD21
MD23
MD24
MD25
MD26
MD27
MD28
MD29
MD30
MD31
MD32
MD33
MD34
MD35
MD36
MD37
MD38
MD40
MD41
MD42
1
2
MD1
MD2
MD3
: Strap options on TC/PA[3] and DACK_ENC[2:0]/PA[2:0] are required for all the STPC Atlas Configurations (ISA,
: Must be implemented.
MCLK Synchro (see
Local Bus Boot Device Size
ISA / PCMCIA / Local Bus
PCI_CLKO Programming
CPU clock Multiplication
CPU clock Multiplication
MCLK Pad Direction
HCLK Pad Direction
DCLK Pad Direction
PCI_CLKO Divisor
PCI_CLKO Divisor
HCLK PLL Speed
HCLK Speed
Designation
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Section 3.1.1.
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
Issue 1.0
- July 24, 2002
)
silicon. The strap options are sampled at a specific
point of the boot process. This is shown in detail in
Figure 4-3
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Not accessible
Index 4C,bit 2
Index 4C,bit 3
Index 4C,bit 4
Index 5F,bit 6
Index 5F,bit 7
Index 4A,bit 1
Index 4A,bit 2
Index 4A,bit 6
Index 4A,bit 7
Index 4A,bit 3
Index 4A,bit 3
Index 4B,bit 2
Index 4B,bit 3
Index 4B,bit 6
Index 4A,bit 0
Index 5F,bit 0
Index 5F,bit 2
Index 5F,bit 3
Index 5F,bit 4
Index 5F,bit 5
Index 4B,bit 0
Index 4B,bit 7
Location
User defined
User defined
User defined
User defined
User defined
User defined
User defined
User defined
User defined
User defined
User defined
User defined
User defined
Pull-down
Pull down
Pull down
Pull down
Pull down
Pull down
Pull down
Pull down
Pull down
Pull down
Settings
Pull Up
Pull-up
Pull-up
Pull-up
Pull-up
Actual
Pull up
Pull up
Pull up
Pull up
Pull up
Pull up
Pull up
Pull up
Pull up
Pull up
Pull up
Set to ’0’
Async
See
See
See
See
See
See
See
See
STRAP OPTION
Input
Input
8-bit
Hi-Z
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Section 3.1.3.
Section 3.1.1.
Section 3.1.1.
Section 3.1.1.
Section 3.1.2.
Section 3.1.1.
Section 3.1.3.
Section 3.1.2.
Set to ’1’
Output
Output
Output
16-bit
Sync
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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