參數(shù)資料
型號(hào): HYB25M128160C
廠商: SIEMENS AG
英文描述: 128-Mbit direct RDRAM(128 Mbit 直接 RDRAM)
中文描述: 128 - Mbit的直接的RDRAM(128兆直接的RDRAM)
文件頁(yè)數(shù): 49/93頁(yè)
文件大?。?/td> 919K
代理商: HYB25M128160C
Data Book
49
2.00
Direct RDRAM
128/144-MBit (256K
×
16/18
×
32s)
Figure 27
INIT Register
0
15 14 13 12 11 10 9
SDE
VID
5
8
7
6
5
4
3
2
1
0
Control Register: INIT
DIS TSQ TEN LSR PSR NSR SRP PSX
0
SDEVID4...SDEVID0
SPD04273
Address: 021
16
PSX - Power Exit Select. PDN and NAP are exited with (=0) or without (=1)
a device address on the DQA5..0 pins. PDEV5 (on DQA5) selectes broadcast (1)
or directed (0) exit. For a directed exit, PDEV4..0 (on DQA4..0) is compared to
DEVID4..0 to select a device.
S
RP - SIO Repeater. Controls value on SIO; SIO1 = SIO0 if SRP = 1,
SIO1 = 1 if SRP = 0
SRP resets to 1.
NAP Self-Refresh. NSR = 1 enables self-refresh in NAP mode.
NSR can’t be set while in NAP mode.
NSR resets to 0.
PDN Self-Refresh. PSR=1 enables self-refresh in PDN mode.
PSR can’t be set while in PDN mode.
PSR resets to 0.
Low Power Self-Refresh. LSR = 1 enables longer self-refresh interval.
The self-refresh supply current is reduced.
LSR resets to 0.
Temperature Sensing Enable. TEN = 1 enables temperature sensing circuitry,
permitting the TSQ bit to be read to determine if a thermal trip point has been
exceeded.
TEN resets to 0.
Temperature Sensing Output. TSQ = 1 when a temperature trip point has been
exceeded, TSQ = 0 when it has not. TSQ is available during a current control
operation (see Figure 51).
RDRAM Disable. DIS = 1 causes RDRAM to ignore NAP/PDN exit sequence,
DIS = 0 permits normal operation. This mechanism disables an RDRAM.
DIS resets to 0.
SDEVID5..0 - Serial Device Identification. Compared to
SDEV5..0 serial address field of serial request packet for
register read/write transactions. This determines which
RDRAM is selected for the register read or write operation.
SDEVID resets to 3F
16
.
Read/write register.
Reset values are undefined except as affected by SIO
Reset as noted below. SETR/CLRR Reset does not
affect this register.
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