IDT70T3519/99/89S
High-Speed 2.5V 256/128/64K x 36 Dual-Port Synchronous Static RAM
Identification Register Definitions
Industrial and Commercial Temperature Ranges
0x330
Instruction Field
Revision Number (31:28)
IDT Device ID (27:12)
IDT JEDEC ID (11:1)
ID Register Indicator Bit (Bit 0)
NOTE:
Value
0x0
(1)
0x33
1
Description
Reserved for version number
Defines IDT part number
Allows unique identification of device vendor as IDT
Indicates the presence of an ID register
5666 tbl 16
1. Device ID for IDT70T3599 is 0x331. Device ID for IDT70T3589 is 0x332.
Scan Register Sizes
Register Name
Instruction (IR)
Bypass (BYR)
Identification (IDR)
Boundary Scan (BSR)
Bit Size
4
1
32
Note (3)
5666 tbl 17
System Interface Parameters
Instruction
EXTEST
BYPASS
IDCODE
HIGHZ
CLAMP
SAMPLE/PRELOAD
RESERVED
PRIVATE
Code
0000
1111
0010
0100
0011
0001
0101, 0111, 1000, 1001,
1010, 1011, 1100
0110,1110,1101
Description
Forces contents of the boundary scan cells onto the device outputs (1) .
Places the boundary scan register (BSR) between TDI and TDO.
Places the bypass register (BYR) between TDI and TDO.
Loads the ID register (IDR) with the vendor ID code and places the
register between TDI and TDO.
Places the bypass register (BYR) between TDI and TDO. Forces all
device output drivers to a High-Z state except COL x & INT x outputs.
Uses BYR. Forces contents of the boundary scan cells onto the device
outputs. Places the bypass register (BYR) between TDI and TDO.
Places the boundary scan register (BSR) between TDI and TDO.
SAMPLE allows data from device inputs (2) to be captured in the
boundary scan cells and shifted serially through TDO. PRELOAD allows
data to be input serially into the boundary scan cells via the TDI.
Several combinations are reserved. Do not use codes other than those
identified above.
For internal use only.
5666 tbl 18
NOTES:
1. Device outputs = All device outputs except TDO.
2. Device inputs = All device inputs except TDI, TMS, and TRST .
3. The Boundary Scan Descriptive Language (BSDL) file for this device is available on the IDT website (www.idt.com), or by contacting your local
IDT sales representative.
6.42
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