QT2032-EKG-1A2 Applied Micro Circuits Corporation, QT2032-EKG-1A2 Datasheet - Page 87

• Manufacturer Part Number: QT2032-EKG-1A2
• Manufacturer: Applied Micro Circuits Corporation

Specifications of QT2032-EKG-1A2

• Lead Free Status / RoHS Status: Supplier Unconfirmed

When the DOM automatic upload mode is selected, the ‘command complete’ or ‘idle’ state will be changed to the
‘command in progress’ state upon the start of a new self initiated upload. This is so an STA read of the MDIO DOM
command status register, 1.A100h, is not needed to clear the ‘command complete’ state. If the ‘command failed’
state is entered, a read of 1.A100h must be performed to clear the failure state. A ‘command failure’ will cause the
automatic uploading of DOM registers to stop. If 00 is written to the DOM update frequency control bits, the
QT2022/32 will complete a DOM update in progress, or if it is in the periodic update wait state it will immediately
perform a DOM update. In either case the device will no longer be in periodic update mode.
Figure 31: DOM Access State Diagram
A DOM or NVR command failure is declared after 16 polling sequences spaced by 1.7 ms without an acknowl-
edgement from the external device. (The total elapsed time for this sequence is 16*10bits*1bit/37kHz+15*1.ms =
30 ms)
Revision 5.11
periodic
update mode
and update time reached
AppliedMicro - Confidential & Proprietary
cmd_succeeded
cmd_status = 01
COMPLETE
reset
cmd_status = 00
execute cmd
cmd_status = 10
IN_PROGRESS
DOM not present
wr_A100 = MDIO write to register 1.A100h
rd_A100 = MDIO read to register 1.A100h
IDLE
rd_A100
DOM present AND
(wr_A100
or
periodic
update mode
and update time reached)
cmd_status = 11
stop period update
cmd_failed
FAILED
rd_A100
QT2022/32 - Data Sheet: DS3051
87