gs88136bgt-333i GSI Technology, gs88136bgt-333i Datasheet - Page 25

• Manufacturer Part Number: gs88136bgt-333i
• Description: 512k X 18, 256k X 32, 256k X 36 9mb Sync Burst Srams
• Manufacturer: GSI Technology

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.
Rev: 1.06 6/2007
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
TDI
TMS
TCK
·
·
·
·
Test Access Port (TAP) Controller
Bypass Register
Instruction Register
ID Code Register
2
31 30 29
0
JTAG TAP Block Diagram
Boundary Scan Register
·
1
0
Control Signals
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·
· · ·
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GS88118B(T/D)/GS88132B(T/D)/GS88136B(T/D)
2
1
0
·
·
·
·
TDO
© 2002, GSI Technology