TMPA901CMXBG Toshiba, TMPA901CMXBG Datasheet - Page 815

• Manufacturer Part Number: TMPA901CMXBG
• Description: Microcontrollers (MCU) 32-bit RISC MCU 16kb ARM926EJ 16kb 200Mhz
• Manufacturer: Toshiba

Specifications of TMPA901CMXBG

• Product Summaries: Summary
• Lead Free: Yes
• Rohs Compatible Product(s): Available
• Rom (kbytes): -
• Rom Type: ROMless
• Ram (kbytes): 32
• Number Of Pins: 177
• Package: BGA
• Vcc: 3V
• Tft Lcd Controller: Y
• Touchscreen Controller: Y
• Usb Host Fs With Phy: Y
• Usb Device Hs With Phy: Y
• Sd Host Controller: -
• Cmos Image Sensor Interface: -
• I2s: 1
• Ssp (ch) Spi: 1
• I2mc/sio (ch): 1
• Uart/sio (ch): 2
• External Bus Interface: Y
• Cs/wait Controller (ch): 4
• Dma Controller: 8
• 10-bit Ad Converter: 4
• 12-bit Da Converter: -
• 16-bit Timer / Counter: 6
• Real Time Clock: Y
• Watchdog Timer: Y
• Osc Freq Detect: Y
• Low-power Modes: Y
• Lead Free Status / Rohs Status: Details

3.26.3 Description of Operation
1) Reset generation and release
after detecting a clock (f
detecting low-frequency clock faults.
specified in the CLKSMN and CLKSMX registers, the OFD generates a reset on the second
rising edge of the low-frequency clock after detecting a clock fault. Generation of a reset does
not clear the clock fault detection, and the reset is released when the clock resumes stable
oscillation and the frequency ratio returns to the specified normal range.
is not released until the low-frequency clock resumes oscillation. When both fs and fosch clock
are in unstable, the operation is not guaranteed.
OFD_RESET
In the case of the low-frequency clock, a reset is generated when the clock stops. The reset
The OFD generates a reset on the second or third rising edge of the low-frequency clock
When a high-frequency clock fault occurs and the frequency ratio goes outside the range
OFD_RESET
Figure 3.26.1
Figure 3.26.2
fosch clock fault
Resume fosch clock
OSCH
Timing of reset generating (fosch clock fault)
Timing of reset releasing (fosch clock fault)
) fault (including a stop state). The OFD is also capable of
TMPA901CM - 814
TMPA901CM
2010-07-29