參數(shù)資料
型號: CY7C0832V-167AXC
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: SRAM
英文描述: 256K X 18 DUAL-PORT SRAM, 4 ns, PQFP120
封裝: 14 X 14 MM, 1.40 MM HEIGHT, LEAD FREE, TQFP-120
文件頁數(shù): 7/32頁
文件大?。?/td> 895K
代理商: CY7C0832V-167AXC
CY7C0851V/CY7C0852V
CY7C0831V/CY7C0832V
Document #: 38-06059 Rev. *I
Page 15 of 32
Table 4. Scan Registers Sizes
Register Name
Bit Size
Instruction
4
Bypass
1
Identification
32
Boundary Scan
n
Table 5. Instruction Identification Codes
Instruction
Code
Description
EXTEST
0000
Captures the Input/Output ring contents. Places the BSR between the TDI and TDO.
BYPASS
1111
Places the BYR between TDI and TDO.
IDCODE
1011
Loads the IDR with the vendor ID code and places the register between TDI and TDO.
HIGHZ
0111
Places BYR between TDI and TDO. Forces all CY7C0851V/CY7C0852V/
CY7C0853V output drivers to a High-Z state.
CLAMP
0100
Controls boundary to 1/0. Places BYR between TDI and TDO.
SAMPLE/PRELOAD 1000
Captures the input/output ring contents. Places BSR between TDI and TDO.
NBSRST
1100
Resets the non-boundary scan logic. Places BYR between TDI and TDO.
RESERVED
All other codes Other combinations are reserved. Do not use other than the above.
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