參數(shù)資料
型號: 82803AAMRH-R
英文描述: Controller Miscellaneous - Datasheet Reference
中文描述: 控制器雜項-數(shù)據(jù)表參考
文件頁數(shù): 10/52頁
文件大?。?/td> 322K
代理商: 82803AAMRH-R
82803AA MRH-R
R
Datasheet
10
1.2.
‘Expansion’ Channel Interface
The ‘expansion’ channel is the interconnection between the MCH and the MRH-R. The ‘expansion’
channel is a superset of the Direct RDRAM channel. In addition to the Direct RDRAM channel signals,
the ‘expansion’ channel has two RSL signals to communicate channel and control information from the
MCH to the MRH-R. These two signals are known as expansion control signals, EXP0 and EXP1.
The ‘expansion’ channel interface consists of 28 RSL, 4 clock and 3 CMOS signals. Figure 2 shows the
interface signals between the MCH and the MRH-R.
Figure 2. 82840 MCH to 82803AA MRH-R Interconnect Diagram
ExRQ
ExDQA/DQB
EXP0, EXP1
ExCFM/CFM#
ExCTM/
CTM#
Intel
82840
MCH
ExSIO1
RQ
DQA/DQB
EXP0, EXP1
CFM/CFM#
SIO
SCK, CMD
ExSCK, ExCMD
C
C
C
C
C
D
C
C
C
S
C
C
C
C
C
D
C
C
C
S
82803AA
MRH-R
Stick Channel
0
Stick Channel
1
Channel A
Channel B
E
x
p
C
h
a
n
n
e
l
Ex_CTM/
CTM#
SMBDATA,
SMBCLK
CTM/CTM#
MCH_MRH_conn
1.3.
MRH-R Direct RDRAM ‘Stick’ Channel Interface
The MRH-R supports two Direct RDRAM channels referred to as Channel A (CHA) and Channel B
(CHB) as shown in Figure 2. These two channels are also referred to as ‘Stick’ Channel A and ‘Stick’
Channel B. Each ‘stick’ channel interface consists of 26 RSL, 4 clock and 3 CMOS signals, and supports
up to 32 RDRAM devices.
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