Datasheet

33
AT30TSE752A/754A/758A [DATASHEET]
Atmel-8854G-DTS-AT30TSE752A-754A-758A-Datasheet_102014
8. Operations Allowed During Nonvolatile Busy Status
While the AT30TSE752A/754A/758A is busy performing nonvolatile operations such as programming the Nonvolatile
Configuration Register or the Serial EEPROM, certain other operations can still be executed. Table 8-1 details which
commands are allowed or not allowed during a Nonvolatile Busy operation. For those commands that are not allowed
during a Nonvolatile Busy operation, the device will respond with a NACK where it would normally respond with an ACK.
Example: If attempting to write to the Nonvolatile Configuration Register, the device would respond with an ACK after
the device address byte and Pointer Register byte but then respond with a NACK instead of an ACK after
the Master has sent the upper byte of configuration register data.
When attempting to read a register during a Nonvolatile Busy operation, the device will NACK instead of ACK after the
AT30TSE752A/754A/758A device address byte has been received.
Table 8-1. Commands Allowed During Nonvolatile Busy Operations
Note: 1. Not allowed during Copy Nonvolatile Registers to Volatile Registers operation.
Command Allowed or Not Allowed
Write to Pointer Register Allowed
Read Temperature Register Allowed
Read Configuration Register Allowed
(1)
Write Configuration Register Not Allowed
Read T
LOW
or T
HIGH
Limit Register Allowed
(1)
Write T
LOW
or T
HIGH
Limit Register Not Allowed
Read or Write Nonvolatile Configuration Register Not Allowed
Read or Write Nonvolatile T
LOW
or T
HIGH
Limit Register Not Allowed
Copy Nonvolatile Registers to Volatile Registers Not Allowed
Copy Volatile Registers to Nonvolatile Registers Not Allowed
Read or Write to Serial EEPROM Not Allowed
SMBus Alert Response Address (ARA) Not Allowed
General Call (04h) Not Allowed
General Call Reset (06h) Not Allowed