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)： 30/54頁(yè)
文件大?。?/td> 351K
代理商： LRI512-C40
LRI512
30/54
READ SINGLE BLOCK
Command Code = 0x20
When receiving the Read Single Block Command,
the LRI512 read the requested block and send
back its 32 bits value in the Response.The
Option_Flag is supported.
Request parameter (Table 24):
– Option_Flag
– UID (Optional)
– Block Number
Response parameter (Table 25):
– Block Locking Status if Option_Flag is set
– 4 bytes of Block Data
Response parameter (Table 27):
– Error Code as Error_Flag is set
Table 24. Read Single Block Request Format
Table 25. Read Single Block Response Format when Error_Flag is NOT Set
Table 26.
Table 27. Read Single Block Response Format when Error_Flag is Set
Figure 34. READ Single Block Frame Exchange between VCD and LRI512
Request
SOF
Request
Flags
Read Single
Block
UID
Block
Number
CRC16
Request
EOF
8 bits
0x20
64 bits
8 bits
16 bits
Response
SOF
Response
Flags
Block
Locking
Status
Data
CRC16
Response
EOF
8 bits
8 bits
32 bits
16 bits
b
7
(bit b
0
for ISO)
b
6
b
5
b
4
b
3
b
2
b
1
b
0
0: Current Block not locked
1: Current Block locked
Reserved for future used. All at 0
Response SOF
Response_Flags
Error Code
CRC16
Response EOF
8 bits
8 bits
16 bits
AI06832
VCD
LRI512
t1
SOF
Read Single
Block Request
EOF
SOF
Read Single
Block Response
EOF
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