STPCI2HDYI STMicroelectronics, STPCI2HDYI Datasheet - Page 38
STPCI2HDYI
Manufacturer Part Number
STPCI2HDYI
Description
Manufacturer
STMicroelectronics
Datasheet
1.STPCI2HDYI.pdf
(108 pages)
Specifications of STPCI2HDYI
Operating Temperature (min)
-40C
Operating Temperature (max)
115C
Processing Unit
Microprocessor
Operating Supply Voltage (min)
2.45/3V
Operating Supply Voltage (typ)
2.5/3.3V
Operating Supply Voltage (max)
2.7/3.6V
Package Type
BGA
Screening Level
Industrial
Pin Count
516
Mounting
Surface Mount
Rad Hardened
No
Lead Free Status / RoHS Status
Supplier Unconfirmed
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STPC® ATLAS
3.1 STRAP OPTION
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1
Bit Number Sampled
STRAP0
MD[7]
7
Bits 7-6
Bits 5-4
Bits 1-0
Bit 3
Bit 2
MD[6]
6
This register defaults to the values sampled on the MD pins after reset
MD[4], MD[17]
Mnemonic
MD[7:6]
MD[9:8]
MD[5]
Rsv
MD[9]
5
3.1.1. STRAP REGISTER 0
This register is read only.
Access = 0022h/0023h
REGISTER DESCRIPTION
Description
PCICLK PLL set-up: The value sampled on MD[7:6] controls the PCICLK
PLL programming according to the PCICLK frequency.
MD7 MD6
Mode selection:
MD9 MD8
Reserved
Host Memory synchronization. This bit reflects the value sampled on
[MD5] and controls the MCLK/HCLK synchronization.
PCICLK division: These bits reflect the values sampled on [MD4] and
MD[17] to select the PCICLK frequency.
MD4 MD17
0
0
1
0
0
1
1
0: MCLK and HCLK not synchronized
1: MCLK and HCLK synchronized.
0
1
1
MD[8]
4
0
1
X
0 ISA mode: ISA enabled, PCMCIA & Local Bus disabled
1 PCMCIA mode: PCMCIA enabled, ISA & Local Bus disabled
0 Local Bus mode: Local Bus enabled, ISA & PCMCIA disabled
1 Reserved
X
0
1
PCICLK frequency between 16 & 32 MHz
PCICLK frequency between 32 & 64 MHz
PCI Clock output = HCLK / 3
PCI Clock output = HCLK / 2
Reserved
PCI Clock output = HCLK / 4
RSV
3
MD[5]
2
MD[4]
1
Regoffset =04Ah
MD[17]
0
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