7. I
2
C Interface > Timeouts
183
Tsi576 User Manual
June 6, 2016
Integrated Device Technology
www.idt.com
•
Transaction timeout (see
C Byte/Transaction Timeout Register”
) – This timeout is disabled on
reset. It detects a situation where a master is keeping the bus for an extended period of time, as
measured from the Start to Stop condition. This timeout is available primarily to detect a violation
of the SMBus TLOW:SEXT time. The response to this timeout expiring is identical to a Byte
timeout, with the exception that the events are MTRTO or STRTO for the master or slave
respectively.
•
Boot timeout (see
) – This timeout detects a situation where the
boot load sequence has not completed in a reasonable time. This could occur if the EEPROM was
improperly programmed with an infinite chaining loop, the bus ownership is held by some other
device, or some other anomalous situation resulting in any of the time-outs above. If the boot
timeout expires before the normal end of the boot load sequence, the master interface reads until
the next data byte and drives a Stop condition on the bus. It then sets the BLTO event, which causes
a BL_FAIL interrupt status to get updated in the
. An optional
interrupt can also be sent to the Interrupt Controller if the BL_FAIL bit is enabled in the
. The boot_complete signal is asserted when the boot load timeout
expires. If the boot timeout is not desired, then the EEPROM programming should immediately
write the I2C_BOOT_DIAG_TIMER.COUNT to 0 to disable the timeout.
Содержание IDT Tsi576
Страница 1: ...IDT Tsi576 Serial RapidIO Switch User Manual June 6 2016 Titl...
Страница 20: ...About this Document 20 Tsi576 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 34: ...1 Functional Overview JTAG Interface 34 Tsi576 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 102: ...4 Internal Switching Fabric Packet Queuing 102 Tsi576 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 230: ...11 Signals Pinlist and Ballmap 230 Tsi576 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 506: ...B Clocking P_CLK Programming 506 Tsi576 User Manual June 6 2016 Integrated Device Technology www idt com...
Страница 528: ...Index 528 Tsi576 User Manual June 6 2016 Integrated Device Technology www idt com...