BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 619

• Manufacturer Part Number: BMSKTOPASA900(DCE)
• Description: KIT STARTER TMPA900 USB JTAG
• Manufacturer: Toshiba
• Series: TOPASr
• Type: MCUr

Specifications of BMSKTOPASA900(DCE)

• Contents: Evaluation Board, Cable(s), Software and Documentation
• For Use With/related Products: TMPA900CMXBG
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3. Suspend Operation *2
(1)
suspend_x
(UDC2-Output)
xcvr_select
(UDC2-Output)
term_select
(UDC2-Output)
• T0: End of bus activity
• T1: Transition to FS mode (3.0 ms to 3.125 ms after T0)
• T2: Recognition of suspend (100 µs to 875 μs after T1)
• T3: Remote wakeup start enable (5 ms after T0)
• T4: Transition to suspend state (10 ms after T0)
DP/DM
Suspend Operation in HS Mode
When the end of bus activity from the host (the end of packet) is detected, UDC2 starts
counting to recognize suspend/reset.
When SE0 is detected for more than 3 ms after T0, UDC2 enters FS mode and drives
xcvr_select and term_select “H”. (This makes USB 2.0 PHY enable DP pull-up.) At this
point, UDC2 cannot determine whether the host is initiating suspend or reset operation.
recognizes suspend and drives suspend_x “L”. When the line state does not change to “J”
and remains “SE0”, UDC2 prepares for reset instead of suspend. In this case, refer to “2.
Reset Operation”.
Resume operation from the device (remote wakeup) is enabled 5 ms after T0. For details,
refer to section “4.(2) Resume Operation by the Device (Remote Wakeup)”.
The device must enter the suspend state no later than 10 ms after T0. Processes required
of the device system to enter the suspend state, such as stopping the clock supply from
USB 2.0 PHY, must be performed during this period.
When the “J” state is detected on the DP/DM line in approximately 110 µs after T1, UDC2
time
Last
Activity
Figure 3.16.29 Suspend operation timing in HS mode
T0
SE0
TENTATIVE
TMPA900CM- 618
T1
T2
T3
“J” State
TMPA900CM
2009-10-14
T4