参数资料
型号: EWIXP455ABT
厂商: INTEL CORP
元件分类: 微控制器/微处理器
英文描述: 266 MHz, RISC PROCESSOR, PBGA544
封装: LEAD FREE, PLASTIC, BGA-544
文件页数: 152/163页
文件大小: 1123K
代理商: EWIXP455ABT
Package Information
Intel IXP45X and Intel IXP46X Product Line of Network Processors Datasheet
May 2005
Document Number: 306261-002
89
4.3
Signal-Pin Descriptions
When designing with a multifunction processor, sometimes a board design may be built to allow a
group of products to be produced from a single board design. When this occurs, some features of a
given processor may not be used. The Intel
IXP45X and Intel IXP46X Product Line of Network
Processors Hardware Design Guidelines gives the system designer a guide to determine how the
signals must be conditioned and how the part behaves under given configurations.
Table 27.
Processors’ Ball Map Assignments (Sheet 1 of 26)
Ball
Signal Name
Processor Number
Configuration 1
Configuration 2
Configuration 3
Intel IXP465
Intel IXP460
Intel IXP455
A1
VSS
X
A2
VSS
X
A3
DDRI_CB[0]
X
A4
DDRI_CK_N[1]
X
A5
DDRI_DM[3]
X
A6
DDRI_DQ[30]
X
A7
DDRI_DQ[26]
X
A8
DDRI_DQ[25]
X
A9
DDRI_DQ[22]
X
A10
DDRI_DQ[18]
X
A11
DDRI_MA[4]
X
A12
VSS
X
A13
DDRI_MA[0]
X
A14
DDRI_MA[8]
X
A15
DDRI_BA[1]
X
A16
VCCM
X
A17
DDRI_CS_N[1]
X
A18
DDRI_CAS_N
X
A19
DDRI_DM[1]
X
A20
DDRI_DQ[13]
X
A21
DDRI_DQ[11]
X
A22
DDRI_DM[0]
X
A23
DDRI_DQ[6]
X
A24
VCCM
X
A25
VSS
X
A26
VSS
X
NOTE:
Interfaces not being utilized at a system level may require external pull-up or pull-down resistors. For specific details and
NOTE:
Configuration 1,2 and 3 are set by the Expansion bus configuration when Reset is deasserted.
Blank field
indicates no physical ball on package.
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