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: 4/111页
文件大小: 671K
代理商: GT-64010A
GT-64010A System Controller with PCI Interface for R4XXX/R5000 Family CPUs
101
Rev is io n 1. 1
Galileo
TechnologyTM
11.4 Interface to DRAM
The DRAM and the device interface in a typical system share the same data latches and address latches. In this exam-
ple the DRAM is 64 -bit wide and the even and odd banks share the same RAS[0]* pin. Address for the odd bank is
driven from an FCT16373 latch which is controlled by LEAdrO. The data latches used in this example are FCT16373
for the interface to the SysAD and FCT16501 to the AD bus. This system configuration is for little endian, no decre-
ment.
LEAdrO
ECAS[3:0]*
OCAS[3:0]*
DWr*
DAdr[11:0]
RAS[0]*
Odd Bank
Even Bank
LEE
OEE*
LEO
OEO*
OEB
OE64*
LEO
LEE
OE64*
SysAD[63:0]
LE
373
B
A
373
B
A
LE
OE*
373
AD [31:0]
GT-
R4XXX
SysAD[63:32]
SysAD[31:0]
DRAM
64010A
OEAB
LEAB
LEBA
OEBA*
501
B
A
OEAB
LEAB
LEBA
OEBA*
501
B
A
64
32
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