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STPCELITE 数据表(PDF) 27 Page - STMicroelectronics

部件名 STPCELITE
功能描述  X86 Core General Purpose PC Compatible System - on - Chip
PDF  87 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STPCELITE 数据表(HTML) 27 Page - STMicroelectronics

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STRAP OPTION
Release 1.3 - January 29, 2002
27/87
This is preliminary information on a new product now in development or undergoing evaluation. Details are subject to change without notice.
3. STRAP OPTION
This chapter defines the STPC Elite Strap Options
and their location. Some strap options have been
left programmable for future versions of silicon..
Table 3-1. Strap Options
Signal
Designation
Actual Settings1
Set to’0’
Set to’1’
MD2
HCLK_PLL speed
User defined
see Section 3.1.4. bit 6
MD3
User defined
see Section 3.1.4. bit 7
MD4
PCI_CLKO divisor
User defined
see Section 3.1.1. bit 4
MD5
MCLK/HCLK Sync (see Section 3.1.1. )
User defined
Async
Sync
MD6
PCI_CLKO setup
User defined
see Section 3.1.1. bit 6
MD7
Reserved
Pull down
-
-
MD10
Reserved
Pull down
-
-
MD11
Reserved
Pull down
-
-
MD16
Reserved
Pull up
-
-
MD17
PCI_CLKO divisor
User defined
see Section 3.1.3. bit 1
MD18
Reserved
Pull Up
-
-
MD19
Reserved
Pull Up
-
-
MD20
Reserved
Pull Up
-
-
MD21
Reserved
Pull Up
-
-
MD22
Reserved
Pull up
-
-
MD23
Reserved
Pull up
-
-
MD24
HCLK PLL speed
User defined
see Section 3.1.4. bit 3
MD25
User defined
see Section 3.1.4. bit 4
MD26
User defined
see Section 3.1.4. bit 5
MD27
Reserved
Pull down
MD28
Reserved
Pull down
MD29
Reserved
Pull down
MD30
Reserved
Pull down
MD40
CPU clock multiplication factor
User defined
X1
X2
MD41
Reserved
Pull down
-
-
MD42
Reserved
Pull up
-
-
MD43
Reserved
Pull down
-
-
MD44
Bus select
User defined
ISA
Local Bus
MD45
Reserved
Pull down
-
-
MD46
Reserved
Pull up
-
-
MD47
Reserved
Pull down
-
-
MD48
Reserved
Pull up
-
-
TC
Reserved
Pull up
DACK_ENC[2:0]
Reserved
Pull up
Note1: Where a strap is represented by a ’Pull up’ or ’Pull down’, these have to be adhered to. If it is represented as a ’-
’ it can be left unconnected. Where ’User defined’, the strap is set by the user.



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