STPCI2 STMicroelectronics, STPCI2 Datasheet - Page 36
STPCI2
Manufacturer Part Number
STPCI2
Description
STPC ATLAS DATASHEET - X86 CORE PC COMPATIBLE SYS
Manufacturer
STMicroelectronics
Datasheet
1.STPCI2.pdf
(111 pages)
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STRAP OPTION
3.1.2. STRAP REGISTER 1
This register is read only.
36/111
Bit Number Sampled
STRAP1
MD[40]
7
Bits 7-6
Bits 5-1
Bit 0
MD[14]
6
This register defaults to the values sampled on the MD pins after reset
MD[40] & MD[14]
Mnemonic
MD[36]
Rsv
RSV
5
Access = 0022h/0023h
Description
CPU Clock Multiplication (486 mode):
MD14 MD40
All other settings are reserved
HCLK maximum speed is 66MHz and in CPU mode X2.
Operation in X1 mode is only guaranteed up to 66MHz.
Reserved
These bits reflect the values sampled on MD[36] and determines the
Local Bus Boot device width:
Issue 1.0
1
1
0: 8-bit Boot Device
1: 16-bit Boot Device
RSV
4
0
1
- July 24, 2002
X 1
X 2
RSV
3
RSV
2
RSV
1
Regoffset =04Bh
MD[36]
0