參數(shù)資料
型號(hào)： LRI512-C40
廠商： 意法半導(dǎo)體
元件分類： DRAM
英文描述： EEPROM
中文描述： EEPROM的
文件頁(yè)數(shù)： 36/54頁(yè)
文件大?。?/td> 351K
代理商： LRI512-C40
LRI512
36/54
LOCK AFI
Command Code = 0x28
When receiving the Lock AFI Request, the LRI512
lock the AFI value permanently. The Option_Flag
is not supported.
During the write cycle t
W
, no modulation (never
100% nor 10%) shall occur. If so, the LRI512 may
not Lock correctly the AFI value into the memory.
The t
W
delay is a multiple of t
1nominal
.
Request parameter (Table 43):
– UID (Optional)
Response parameter (Table 44):
– No parameter.
Response parameter (Table 45):
– Error Code as Error_Flag is set
Table 43. Lock AFI Request Format
Table 44. Lock AFI Response Format when Error Flag is NOT Set
Table 45. Lock AFI Response Format when Error Flag is Set
Figure 40. LOCK AFI Frame Exchange between VCD and LRI512
Request
SOF
Request
Flags
Lock AFI
UID
CRC16
Request
EOF
8 bits
0x28
64 bits
16 bits
Response SOF
Response_Flags
CRC16
Response EOF
8 bits
16 bits
Response SOF
Response_Flags
Error Code
CRC16
Response EOF
8 bits
8 bits
16 bits
AI06838
VCD
LRI512
LRI512
t1
EOF
SOF
EOF
SOF
Lock sequence when error
SOF
EOF
t1
tw
Lock AFI
Request
Lock AFI
Response
Lock AFI
Response
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