參數(shù)資料
型號： 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
文件頁數(shù)： 32/54頁
文件大小： 351K
代理商： LRI512-C40
LRI512
32/54
LOCK BLOCK
Command Code = 0x22
When receiving the Lock Block Command, the
LRI512 lock permanently the requested block. 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 memory block. The t
W
delay
is a multiple of t
1nominal
.
Request parameter (Table 31):
– (Optional) UID
– Block Number
Response parameter (Table 32):
– No parameter.
Response parameter (Table 33):
– Error Code as Error_Flag is set
Table 31. Lock Single Block Request Format
Table 32. Lock Block Response Format when Error Flag is NOT Set
Table 33. Lock Block Response Format when Error Flag is Set
Figure 36. LOCK Block Frame Exchange between VCD and LRI512
Request
SOF
Request
Flags
Lock Block
UID
Block
Number
CRC16
Request
EOF
8 bits
0x22
64 bits
8 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
AI06834
VCD
LRI512
LRI512
t1
EOF
SOF
EOF
SOF
Lock sequence when error
SOF
EOF
t1
tw
Lock Block
Request
Lock Block
Response
Lock Block
Response
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