SRIX4K-A5T/1GE STMicroelectronics, SRIX4K-A5T/1GE Datasheet - Page 36

• Manufacturer Part Number: SRIX4K-A5T/1GE
• Manufacturer: STMicroelectronics

Specifications of SRIX4K-A5T/1GE

• Operating Temperature (max): 85C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant

SRIX4K commands
9.8
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WRITE_BLOCK (Addr, Data) command
Command Code = 09h
On receiving the WRITE_BLOCK command, the SRIX4K writes the 4 bytes contained in the
command to the addressed block, provided that the block is available and not Write-
protected. Data Bytes are transmitted with the Least Significant Byte first, and each byte is
transmitted with the least significant bit first.
The address Byte gives access to the 128 blocks of the SRIX4K (addresses 0 to 127).
WRITE_BLOCK commands issued with a block address above 127 will not be interpreted
and the SRIX4K will not return any response, except for the System area located at address
255.
The result of the WRITE_BLOCK command is submitted to the addressed block. See the
following Figures for a complete description of the WRITE_BLOCK command:
The WRITE_BLOCK command does not give rise to a response from the SRIX4K. The
reader must check after the programming time, t
The SRIX4K must have received a SELECT() command and be switched to SELECTED
state before any WRITE_BLOCK command can be accepted. All WRITE_BLOCK
commands sent to the SRIX4K before a SELECT() command is issued, are ignored.
Figure 44. WRITE_BLOCK request format
Request parameters:
Figure 45. WRITE_BLOCK response format
SOF
–
–
–
–
–
–
–
–
WRITE_BLOCK
Figure 12: Resettable OTP area (addresses 0 to
Figure 15: Binary counter (addresses 5 to
Figure 17: EEPROM (addresses 7 to
ADDRESS: block addresses from 0 to 127, or 255
DATA 1: Less significant data Byte
DATA 2: Data Byte
DATA 3: Data Byte
DATA 4: Most significant data Byte.
09h
ADDRESS
8 bIts
DATA 1
8 bIts
No Response
DATA 2
8 bIts
127).
W
, that the data was correctly programmed.
DATA 3
8 bIts
6).
4).
DATA 4
8 bIts
CRC L
8 bits
CRC H
8 bIts
AI07687
SRIX4K
AI07680
EOF