參數(shù)資料
型號： GT-64010A
廠商： Galileo Technology Services, LLC
英文描述： System Controller with PCI Interface for R4XXX/ R5000 Family CPUs(帶PCI接口用于R4XXX/ R5000 系列 CPUs的系統(tǒng)控制器)
中文描述： 系統(tǒng)控制器的PCI R4XXX接口/ R5000系列處理器（帶的PCI接口用于R4XXX / R5000系列處理器的系統(tǒng)控制器）
文件頁數(shù)： 9/111頁
文件大?。?/td> 671K
代理商： GT-64010A
GT-64010A System Controller with PCI Interface for R4XXX/R5000 Family CPUs
106
R e v i s ion 1 . 1
Galileo
TechnologyTM
SWAP Bits (CPU bit:PCI bit)
13.2 Address Decoding
13.2.1. CPU Interface Unit’s Address Decode
An address generated by the CPU is decoded within the CPU Interface unit as follows:
- address bits [35:28] are checked for equality to CPU Interface unit’s Low Decode Registers’ bits [14:7]
- address bits [27:21] are checked to be greater or equal to CPU Interface unit’s Low Decode Registers’ bits [6:0]
- address bits [27:21] are checked to be less or equal to CPU Interface unit’s High Decode registers’ bits [6:0]
An address is said to be a hit when a match occurs in all three criterias for the same Low and High decode register
pair.
13.2.2. DMA Address Decode
The DMA uses three types of address: Source, Destination and Pointer. (Pointer address is used only for chained
mode) All three are decoded the same way as follows:
- address bits [31:28] are checked for equality to CPU Interface unit’s Low Decode Registers’ bits [10:7]
- address bits [27:21] are checked to be greater or equal to CPU Interface unit’s Low Decode Registers’ bits [6:0]
- address bits [27:21] are checked to be less or equal to CPU Interface unit’s High Decode registers’ bits [6:0]
An address is said to be a hit when a match occurs in all three criterias for the same Low and High decode register
pair.
13.2.3. PCI Interface Unit’s Address Decode
An address generated by a PCI Master is decoded within the PCI Interface Unit’s Slave as follows:
- address bits for which the corresponding bits in the Size Registers are ‘0’ are checked for equality to the corre-
Resource
11
00
01
10
Internal Registers (CPU access)
04030201
01020304
04030201
Internal Registers (PCI access)
04030201
Internal PCI Configuration Registers
(CPU access)
04030201
01020304
04030201
Internal PCI Configuration Registers
(PCI access)
04030201
External PCI Configuration Registers
04030201
01020304
Memory (DRAM and Devices) (CPU
access)
04030201
Memory (DRAM and Devices) (PCI
access)
04030201
01020304
04030201
01020304
CPU to PCI (Except external PCI Config-
uration Registers)
04030201
01020304
04030201
01020304
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相關代理商/技術參數(shù)
參數(shù)描述
GT64010A-B 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Peripheral IC
GT64010AB1 制造商:GALILEO 功能描述:*
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GT64011-A1-PBB-C000 制造商:Marvell 功能描述:
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