參數(shù)資料
型號: LXT971A
廠商: Intel Corp.
英文描述: 3.3V Dual-Speed Fast Ethernet PHY Transceiver
中文描述: 3.3雙速快速以太網(wǎng)物理層收發(fā)器
文件頁數(shù): 47/90頁
文件大?。?/td> 568K
代理商: LXT971A
LXT971A 3.3V Dual-Speed Fast Ethernet Transceiver
Datasheet
Document #: 249414
Revision #: 002
Rev. Date: August 7, 2002
47
Table 12. BSR Mode of Operation
Mode
Description
1
Capture
2
Shift
3
Update
4
System Function
Table 13. Supported JTAG Instructions
Name
Code
Description
Mode
Data Register
EXTEST
1111 1111 1110 1000
External Test
Test
BSR
IDCODE
1111 1111 1111 1110
ID Code Inspection
Normal
ID REG
SAMPLE
1111 1111 1111 1000
Sample Boundary
Normal
BSR
HIGHZ
1111 1111 1100 1111
Force Float
Normal
Bypass
CLAMP
1111 1111 1110 1111
Control Boundary to 1/0
Test
Bypass
BYPASS
1111 1111 1111 1111
Bypass Scan
Normal
Bypass
Table 14. Device ID Register
31:28
27:12
11:8
7:1
0
Version
2
Part ID (hex)
Jedec Continuation Characters
JEDEC ID
1
Reserved
XXXX
03CB
0000
111 1110
1
1. The JEDEC IS is an 8-bit identifier. The MSB is for parity and is ignored. Intel’s JEDEC ID is FE
(1111 1110), which becomes 111 1110.
2. See the LXT971A/972A Specification Update (document number 249354) for the current version of the
Jedec continuation characters.
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