BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 615

• 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

(UDC2-Input)
(UDC2-PVCI Access)
xcvr_select
(UDC2-Output)
term_select
(UDC2-Output)
V
reset_x
USB_Read
1. Connect/Disconnect Operations
BUS
(1)
(2)
• T0: Vbus detection
•
• T2 ･･･ USB reset start (more than 100 ms after T1)
Connect Operation
Disconnect Operation
T1: Device connect (no later than 100 ms after T0)
When Vbus is detected, a system reset (reset_x input) should be applied to UDC2.
xcvr_select is “H” and term_select is “L”.
The device must enable DP pull-up no later than 100 ms after Vbus detection (T0) to
notify the host of the connected state. Therefore, when Vbus is detected and the device is
ready to communicate with the host, the system should access the Command register in
UDC2 to set the USB_Ready command. When USB_Ready is accepted, UDC2 drives
term_select “H”. This makes USB 2.0 PHY enable DP pull-up.
When a disconnected state is detected, it is recommended to apply a system reset to
UDC2.
(H)
Figure 3.16.26 Connect operation timing
TENTATIVE
TMPA900CM- 614
T1
*4) Based on the USB 2.0 Specification.
Idle(FS)
T2
SE0
TMPA900CM
2009-10-14