BMSKTOPASA900(DCE) Toshiba, BMSKTOPASA900(DCE) Datasheet - Page 78

• 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

3.6.4
USB Host
PC
(1) Connection example
(2) Overview of the USB interface specifications
Download via USB
Figure 3.6.5 shows an example of USB connection (assuming that NOR Flash is
program memory)
Set the oscillation frequency for the X1 and X2 pins to 24.00 MHz (± 100 ppm) when
booting using USB.
The USB of this microcontroller supports high-speed communications. However, if the
USB host does not support high-speed communications (USB 1.1 or older), full-speed
communications will be carried out.
(The boot ROM function does not support clock supply from the USB clock pin X1USB.)
(For cautions on using the USB, refer to the chapter on the USB.)
Although there are four types of USB transfer, the following two types are used for the
boot function.
Control Transfer
Bulk Transfer
Transfer type
Table 3.6.5 Transfer types used by the boot program
Figure 3.6.5 USB connection example
Used for transmitting standard requests and vendor requests.
Used for responding to vendor requests and transmitting a user program.
DDP
DDM
AM0
AM1
TENTATIVE
TMPA900CM- 77
TMPA900CM
Address
24MHz
X1
X2
Data
Description
CTL
Data
NOR Flash
Address
TMPA900CM
2009-10-14