BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 485

• 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

3.16.1.2 Example of Connection
USB Host
USB Host
(1) Pulling up of the DP pin
(2) Insertion of series resistance for the DP and DM pins
(3) Detection of connector connection
(4) 24-MHz clock input
the TMPA900CM.
VBUS
The above diagram shows the connections required for using the USB controller in
GND
R8
R9
communication. An internal pull-up resistor is provided, and no external circuit is
required.
DP and DM pins. Internal series resistance is provided for each of these pins, and
no external circuit is required.
example.
Note: If the waveform rises slowly, it is recommended to insert appropriate buffering for waveform
implemented in two ways. One is to connect a 24-MHz resonator to the X1 and X2
pins and the other is to input a 24-MHz clock from the X1USB pin.
SYSCR0<USBCLKSEL> is used to select either of these methods. In whichever
case, the clock precision must be ±100 ppm or less.
should be connected to the VBUS pin in such a way as to assert the interrupt pin
High (3.3 V) when power is connected. By detecting this interrupt by software,
connector connection can be detected.
As shown in the connection example above, R6 and R7 for dividing resistance
The USB specification requires that the DP pin be pulled up for Full-Speed
The USB specification requires that series resistance be inserted for each of the
How to detect connector connection with VBUS (5 V) is explained as an
The USB device controller requires a 24-MHz clock. This clock input can be
shaping.
Recommended values: R6 = 60 kΩ, R7 = 100 kΩ
Connector
USB
Cable
USB
Connector
USB
TENTATIVE
TMPA900CM- 484
(VBUS consumption current in suspended state < 500 μA)
R6
R7
USB Device
AVDD3Tx, AVDD3C
AVSS3Tx, AVSS3C
INTx (rise detection)
DP
DM
TMPA900CM
TMPA900CM
2009-10-14
VSENS
X1USB
REXT
X1
X2
24 MHz
R10
24 MHz