IXP45X INTEL [Intel Corporation], IXP45X Datasheet - Page 44
IXP45X
Manufacturer Part Number
IXP45X
Description
Product Line of Network Processors
Manufacturer
INTEL [Intel Corporation]
Datasheet
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Table 9.
Intel
Datasheet
44
®
IXP45X and Intel
A signal called active high specifies that the interface is active when driven to a logic 1
and inactive when driven to a logic 0.
A signal called active low specifies that the interface is active when driven to a logic 0
and inactive when driven to a logic 1.
The following information attempts to explain how to interpret the tables. There are
five vertical columns:
Processors’ Signal Interface Summary Table
Table 10, “DDR SDRAM Interface” on page 45
Table 11, “PCI Controller” on page 46
Table 12, “High-Speed, Serial Interface 0” on page 50
Table 13, “High-Speed, Serial Interface 1” on page 51
Table 14, “UTOPIA Level 2/MII_A/ SMII Interface” on page 53
Table 15, “MII/SMII Interfaces” on page 59
Table 16, “Expansion Bus Interface” on page 66
Table 17, “UART Interfaces” on page 69
Table 18, “Serial Peripheral Port Interface” on page 70
Table 19, “I2C Interface” on page 70
Table 20, “USB Host/Device Interfaces” on page 71
Table 21, “Oscillator Interface” on page 72
Table 22, “GPIO Interface” on page 73
Table 23, “JTAG Interface” on page 73
Table 24, “System Interface” on page 74
Table 25, “Power Interface” on page 75
• Power On Reset Active - This is when the Power on Reset signal is driven to logic 0.
• Reset Active - When Power on Reset is driven to a logic 1 and Reset is driven to a
• Normal After Reset Until Software Enables - This is sometimes called safe mode.
• Possible Configurations after Software Enables - This state describes the way that
When this happens the part will behave as described in this column irrelevant of the
settings on other signals.
logic 0, the part will exhibit this behavior.
The intent of this is to allow the interface to be brought out of reset to a state,
which will not cause any protocol violations or any damage to the parts prior to
being enabled via software. This state will occur when both Power on Reset and
Reset are driven to a logic 1.
the part is capable of behaving with appropriate software written. This state will
occur when both Power on Reset and Reset are driven to a logic 1.
®
IXP46X Product Line of Network Processors
Intel
®
IXP45X and Intel
Reference
®
IXP46X Product Line of Network Processors—Datasheet
Document Number:
306261-004US
August 2006
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