參數(shù)資料
型號: GS881Z32CGD-150IVT
廠商: GSI TECHNOLOGY
元件分類: SRAM
英文描述: 256K X 32 ZBT SRAM, 7.5 ns, PBGA165
封裝: 13 X 15 MM, 1 MM PITCH, ROHS COMPLIANT, FPBGA-165
文件頁數(shù): 19/37頁
文件大小: 1239K
代理商: GS881Z32CGD-150IVT
GS881Z18/32/36C(T/D)-xxxV
Rev: 1.00a 10/2009
26/37
2008, GSI Technology
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
device pins and the bits in the Boundary Scan Register is described in the Scan Order Table following. The Boundary Scan
Register, under the control of the TAP Controller, is loaded with the contents of the RAMs I/O ring when the controller is in
Capture-DR state and then is placed between the TDI and TDO pins when the controller is moved to Shift-DR state. SAMPLE-Z,
SAMPLE/PRELOAD and EXTEST instructions can be used to activate the Boundary Scan Register.
Instruction Register
ID Code Register
Boundary Scan Register
0
1
2
0
31 30 29
1
2
0
Bypass Register
TDI
TDO
TMS
TCK
Test Access Port (TAP) Controller
M*
1
0
Control Signals
* For the value of M, see the BSDL file, which is available at by contacting us at apps@gsitechnology.com.
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
Not Used
GSI Technology
JEDEC Vendor
ID Code
Presence
Register
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
0
X X X X X X X X X X X X X X X X X X X X 0
0 0 1 1 0 1 1 0 0 1
1
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