SR176A4T1GE STMicroelectronics, SR176A4T1GE Datasheet - Page 22

• Manufacturer Part Number: SR176A4T1GE
• Manufacturer: STMicroelectronics

Specifications of SR176A4T1GE

• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Compliant

Device operations (instructions)
5.8
22/35
GET_PROTECTION
Figure 32. PROTECT_BLOCK frame exchange between Reader and SR176
Command Code = 08h,0Fh
Prior to any GET_PROTECTION, the SR176 must have been set into the SELECTED state.
GET_PROTECTION allows the protection status of memory blocks 4 to 15 to be read.
When receiving the GET_PROTECTION command, the SR176 responds with the 16-bit
value of block 15
SR176.
Request parameters
Response parameters
Figure 33. GET_PROTECTION request format
Figure 34. GET_PROTECTION response format
Reader
SR176
none
Chip_ID: least significant Byte
LOCK_REG: most significant Byte
SOF
SOF
SOF 09h 0Fh
Chip_ID
(Figure
8 bits
08h
(Figure
PROTECT_BLOCK
(Figure
00h
35). It gives the status of the LOCK_REG and the Chip_ID of the
33):
LOCK_REG
34):
LOCK_REG
8 bits
0Fh
CRC L CRC H EOF
8 bits
CRC L
CRC L
8 bits
CRC H
8 bits
CRC H
8 bits
No Response
EOF
AI07714B
EOF
AI07713B
AI07712B
SR176