参数资料
型号: GT-64010A
厂商: Galileo Technology Services, LLC
英文描述: System Controller with PCI Interface for R4XXX/ R5000 Family CPUs(带PCI接口用于R4XXX/ R5000 系列 CPUs的系统控制器)
中文描述: 系统控制器的PCI R4XXX接口/ R5000系列处理器(带的PCI接口用于R4XXX / R5000系列处理器的系统控制器)
文件页数: 5/111页
文件大小: 671K
代理商: GT-64010A
GT-64010A System Controller with PCI Interface for R4XXX/R5000 Family CPUs
102
R e v i s ion 1 . 1
Galileo
TechnologyTM
11.5 A System With Parity
In this case, the FCT16511 is used to generate parity for all the write accesses to the devices and the DRAM. In a CPU
read access the FCT16511 will check parity and will assert the ParErr* signal when an error is detected. The GT-
64010A will indicate to the CPU that the returned data is erroneous via SysCmd[5] and will interrupt the CPU if the
bank that the CPU read from was programmed to have parity integrity checks. The GT-64010A also asserts SysCmd[4]
to indicate to the CPU if the read access was from an address with parity integrity so that the CPU will check parity
internally as well. In PCI read accesses, an active ParErr* to a bank that has parity integrity, will cause an assertion of
PErr* on the PCI. Notice that with the FCT16511 the OEAB* polarity is active low, as opposed to the FCT16501, and
thus OEB from the GT-64010A should be programmed accordingly at reset. This system configuration is for little
endian, no decrement.
LEAdrO
ECAS[3:0]*
OCAS[3:0]*
DWr*
DAdr[11:0]
RAS[0]*
Odd Bank
Even Bank
LEE
OEE*
LEO
OEO*
OEB
OEAB*
LEAB
LEBA
OEBA*
B
A
OE64*
LEO
LEE
OE64*
SysAD[63:0], SysADC[7:0]
LE
B
A
B
A
LE
OE*
841
AD[31:0]
GT-
841
511
ParErr*
PERA*
32
36
72
36
R4XXX
SysAD[31:0], SysADC[3:0]
64010A
SysAD[63:32], SysADC[7:4]
DRAM
OEAB*
LEAB
LEBA
OEBA*
B
A
511
PERA*
36
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