TMPA901CMXBG Toshiba, TMPA901CMXBG Datasheet - Page 643

• 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

Scaling up processing examples
same sampling cycle (127 = 0x7F) for Examples 1 and 2.
--------------------------------------------
including correction processing:
Sampling cycles are specified in integers by dropping the fractional portion. This results in the
When data is sampled at every 127 pixels, sampling points occur as shown below.
Example 1 sampling point
First point:
Second point:
Third point:
254th point:
255th point:
256th point:
The following describes the examples of how to establish the setting for scaling up processing
Example 2: For scaling up 128 pixels to 255 pixels
image.
Therefore, the pixels after 32385 are not used and discarded.
Example 1: For scaling up 128 pixels to 256 pixels
Number of original pixels in the X direction: OX pixel
Number of after-scaled-up pixels in the X direction: GX pixel
(Sampling cycle)
In Example 1, the 256th sampling point is 32512, which is the last pixel of the original
Since Example 2 uses the same sampling cycle, the 255th sampling point is 32385.
=
=
=
=
= (Maximum number of interpolatable pixels) / (Number of after-scaled-up pixels)
= {(OX 1)
(127
(32512)
127
(127
(32512)
127.49...
0
127
254
32258
32385
32512
256)
256)
256}
256
255
256
255
GX
TMPA901CM- 642
TMPA901CM
2010-07-29