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參數(shù)資料
| 型號(hào)： | GS8180S09 |
| 廠商： | GSI TECHNOLOGY |
| 英文描述： | 2Mb x 9Bit Separate I/O Sigma DDR SRAM(2M x 9位獨(dú)立I/O接口雙數(shù)據(jù)速率讀和寫模式靜態(tài)ΣRAM) |
| 中文描述： | 2MB的x 9Bit分離I / O西格瑪?shù)腄DR SRAM的（2米× 9位獨(dú)立的I / O接口雙數(shù)據(jù)速率讀和寫模式靜態(tài)ΣRAM） |
| 文件頁(yè)數(shù)： | 24/32頁(yè) |
| 文件大?。?/td> | 853K |
| 代理商： | GS8180S09 |
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Rev: 1.01 11/2000
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
24/32
2000, Giga Semiconductor, Inc.
A
Advanced Information
GS8180S09/18/36B-333/300/275/250
JTAG TAP Block Diagram
Identification (ID) Register
The ID Register is a 32-bit register that is loaded with a device and vendor specific 32-bit code when the controller is put in
Capture-DR state with the IDCODE command loaded in the Instruction Register. The code is loaded from a 32-bit on-chip ROM.
It describes various attributes of the RAM as indicated below. The register is then placed between the TDI and TDO pins when the
controller is moved into Shift-DR state. Bit 0 in the register is the LSB and the first to reach TDO when shifting begins.
ID Register Contents
Tap Controller Instruction Set
Overview
There are two classes of instructions defined in the Standard 1149.1-1990—the standard (Public) instructions, and device specific
(Private) instructions. Some Public instructions are mandatory for 1149.1 compliance. Optional Public instructions must be
implemented in prescribed ways. Although the TAP controller in this device follows the 1149.1 conventions, it is not 1194.1-
compliant because some of the mandatory instructions are uniquely implemented. The TAP on this device may be used to monitor
all input and I/O pads, but cannot be used to load address, data or control signals into the RAM or to preload the I/O buffers.This
device will not perform INTEST or the preload portion of the SAMPLE/PRELOAD command.
Die
Revision
Code
Not Used
I/O
Configuration
GSI Technology
JEDEC Vendor
ID Code
P
Bit #
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
X
X
X
X
0
0
0
0
0
0
0
0
0
0
X
X
X
X
0
0
0
0
0
0
0
0
0
0
X
X
X
X
0
0
0
0
0
0
0
0
0
0
0
1
1
1
x36
0
0
0
0
0
0
1
1
1
0
1
0
0
1
1
0
0
0
0
0
0
0
0
0
0 1 1 0 1 1 0 0 1
0 1 1 0 1 1 0 0 1
0 1 1 0 1 1 0 0 1
x09
x18
Instruction Register
ID Code Register
·
31 30 29
Boundary Scan Register
· · ·
· · ·
n
0
1
2
0
1
2
· · ·
0
1
2
· · ·
0
Bypass Register
TDI
TDO
TMS
TCK
Test Access Port (TAP) Controller
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