參數(shù)資料
型號(hào)： GS816236
廠商： GSI TECHNOLOGY
英文描述： 16Mb（512K x 36Bit）S/DCD Sync Burst SRAM(16M位（512K x 36位）可選單/雙循環(huán)取消同步?jīng)_靜態(tài)RAM(帶2位脈沖地址計(jì)數(shù)器))
中文描述： 16Mb的（為512k × 36Bit）的S /雙氰胺同步突發(fā)靜態(tài)存儲(chǔ)器（1,600位（為512k × 36位）可選單/雙循環(huán)取消同步?jīng)_靜態(tài)隨機(jī)存儲(chǔ)器（帶2位脈沖地址計(jì)數(shù)器））
文件頁數(shù)： 29/38頁
文件大?。?/td> 826K
代理商： GS816236
Rev: 2.10 11/2000
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
29/38
1999, Giga Semiconductor, Inc.
Preliminary
GS816218/36/72B-225/200/180/166/150/133
device will not perform INTEST or the preload portion of the SAMPLE / PRELOAD command.
When the TAP controller is placed in Capture-IR state the two least significant bits of the instruction register are loaded with 01.
When the controller is moved to the Shift-IR state the Instruction Register is placed between TDI and TDO. In this state the desired
instruction is serially loaded through the TDI input (while the previous contents are shifted out at TDO). For all instructions, the
TAP executes newly loaded instructions only when the controller is moved to Update-IR state. The TAP instruction set for this
device is listed in the following table.
JTAG Tap Controller State Diagram
Instruction Descriptions
BYPASS
When the BYPASS instruction is loaded in the Instruction Register the Bypass Register is placed between TDI and TDO. This occurs when
the TAP controller is moved to the Shift-DR state. This allows the board level scan path to be shortened to facilitate testing of other devices
in the scan path.
SAMPLE/PRELOAD
SAMPLE/PRELOAD is a Standard 1149.1 mandatory public instruction. When the SAMPLE / PRELOAD instruction is loaded in the Instruc-
tion Register, moving the TAP controller into the Capture-DR state loads the data in the RAMs input and I/O buffers into the Boundary Scan
Register. Because the RAM clock is independent from the TAP Clock (TCK) it is possible for the TAP to attempt to capture the I/O ring con-
tents while the input buffers are in transition (i.e. in a metastable state). Although allowing the TAP to sample metastable inputs will not harm
the device, repeatable results cannot be expected. RAM input signals must be stabilized for long enough to meet the TAPs input data cap-
ture set-up plus hold time (tTS plus tTH ). The RAMs clock inputs need not be paused for any other TAP operation except capturing the I/O
Select DR
Capture DR
0
Shift DR
Exit1 DR
Pause DR
Exit2 DR
Update DR
1
Select IR
Capture IR
0
Shift IR
Exit1 IR
Pause IR
Exit2 IR
Update IR
1
Test Logic Reset
Run Test Idle
0
1
0
1
1
0
1
1
1
0
0
1
1
0
0
0
0
1
1
0
0
0
0
0
1
1
1
1
相關(guān)PDF資料
PDF描述
GS816272 16Mb（256K x 72Bit）S/DCD Sync Burst SRAM(16M位（256K x 72位）可選單/雙循環(huán)取消同步靜態(tài)RAM(帶2位脈沖地址計(jì)數(shù)器))
GS8162Z18BGB-200I 18Mb Pipelined and Flow Through Synchronous NBT SRAM
GS8162Z18BB 18Mb Pipelined and Flow Through Synchronous NBT SRAM
GS8162Z18BB-150 18Mb Pipelined and Flow Through Synchronous NBT SRAM
GS8162Z18BB-150I 18Mb Pipelined and Flow Through Synchronous NBT SRAM
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
GS816236BB-150 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 3.3V 18MBIT 512KX36 7.5NS/3.8NS 119FBGA - Trays
GS816236BB-150I 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 3.3V 18MBIT 512KX36 7.5NS/3.8NS 119FBGA - Trays
GS816236BB-150IV 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 2.5V/3.3V 18MBIT 512KX36 7.5NS/3.8NS 119FPBGA - Trays
GS816236BB-150V 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 2.5V/3.3V 18MBIT 512KX36 7.5NS/3.8NS 119FPBGA - Trays
GS816236BB-200 制造商:GSI Technology 功能描述:SRAM SYNC QUAD 3.3V 18MBIT 512KX36 6.5NS/3NS 119FBGA - Trays
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