參數(shù)資料
型號: HYB25R144180C
廠商: SIEMENS AG
英文描述: 144-Mbit direct RDRAM(144 Mbit 直接 RDRAM)
中文描述: 144兆位的直接的RDRAM(144兆直接的RDRAM)
文件頁數(shù): 57/93頁
文件大小: 919K
代理商: HYB25R144180C
Data Book
57
2.00
Direct RDRAM
128/144-MBit (256K
×
16/18
×
32s)
Figure 42
SKIP Register
Figure 43
TEST Registers
11
MSE
14
0
0
15
0
AS
13 12
Address: 04B
16
Control Register: SKIP
MS
0
10 9
0
0
0
7
8
6
3
0
0
0
5
4
0
0
2
1
0
0
Read/write register (except AS field).
Reset value is zero (SIO Reset).
AS - Autoskip. Read-only value determined by
autoskip circuit and stored when SETF serial
command is received by RDRAM during initial-ization.
In figure 58, AS = 1 corresponds to the
early Q(a1) packet and AS = 0 to the Q(a1) packet
one
t
CYCLE
later for the four uncertain cases.
MSE - Manual skip enable (0 = auto, 1 = manual).
MS - Manual skip (MS must be 1 when MSE = 1).>
During initialization, the RDRAMs at the furthest
point in the fifth read domain may have selected
the AS = 0 value, placing them at the closest point
in a sixth read domain. Setting the MSE/MS fields
to 1/1 overrides the autoskip value and returns
them to the furthest point of the fifth read
domain.
SPD04288
11
0
14
0
0
15
0
0
13 12
Address: 04F
16
Control Register: TEST79
Address: 04E
16
Control Register: TEST78
Address: 04D
16
Control Register: TEST77
0
0
10 9
0
0
0
7
8
6
3
0
0
0
5
4
0
0
2
1
0
0
Read/write registers.
Reset value of TEST78, 79 is zero ( SIO Reset).
Do not read or write TEST78, 79 after SIO reset.
TEST77 must be written with zero after SIO reset.
These registers must only be used for testing
purposes.
SPD04289
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