參數(shù)資料
型號: HY5R256HC
英文描述: -|2.5V|8K|40|Direct RDRAM - 256M
中文描述: - |為2.5V | 8K的| 40 |直接RDRAM的- 256M
文件頁數(shù): 31/64頁
文件大?。?/td> 4542K
代理商: HY5R256HC
Rev.0.9 / Dec.2000
31
Direct RDRAM
256/288-Mbit (512Kx16/18x32s) Preliminary
046
16
PDNXA
PDNXA
read-write, 13 bits
PDN exit. Specifies length of PDN exit phase A.
047
16
PDNX
PDNX
read-write, 13 bits
PDN exit. Specifies length of PDN exit phase A + phase B.
048
16
TPARM
TCAS
read-write, 2 bits
t
CAS-C
core parameter. Determines t
OFFP
datasheet parameter.
TCLS
read-write, 2 bits
t
CLS-C
core parameter. Determines t
CAC
and t
OFFP
parameters.
TCDLY0
read-write, 3 bits
t
CDLY0-C
core parameter. Programmable delay for read data.
049
16
TFRM
TFRM
read-write, 4 bits
t
FRM-C
core parameter. Determines ROW-COL packet framing interval.
04a
16
TCDLY1
TCDLY1
read-write, 3 bits
t
CDLY1-C
core parameter. Programmable delay for read data.
04c
16
TCYCLE
TCYCLE
read-write, 14 bits
t
CYCLE
datasheet parameter. Specifies cycle time in 64ps units.
048
16
SKIP
AS
read-only, 1 bits
Autoskip value established by the SETF command.
MSE
read-write, 1 bits
Manual skip enable. Allows the MS value to override the AS value.
MS
read-write, 1 bits
Manual skip value.
04d
16-
TEST77
TEST77
read-write, 16 bits
Test register. Write with zero after SIO reset.
04e
16-
TEST78
TEST78
read-write, 16 bits
Test register.
04f
16-
TEST79
TEST79
read-write, 16 bits
Test register. Do not read or write after SIO reset.
080
16
- 0ff
16
reserved
reserved
vendor-specific
Vendor-specific test registers. Do not read or write after SIO reset.
Table 15: Control Register Summary
SA11..SA0
Register
Field
read-write/ read-only
Description
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