AT91SAM9XE128-QU Atmel, AT91SAM9XE128-QU Datasheet - Page 754

• Manufacturer Part Number: AT91SAM9XE128-QU
• Description: MCU ARM9 128K FLASH 208-PQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91SAM9XE128-QU

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 180MHz
• Connectivity: EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 96
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 40K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 208-MQFP, 208-PQFP
• Processor Series: AT91SAMx
• Core: ARM926EJ-S
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: 2-Wire, EBI, I2S, SPI, USART
• Maximum Clock Frequency: 180 MHz
• Number Of Programmable I/os: 96
• Number Of Timers: 6
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, KSK-AT91SAM9XE-PL, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91SAM9XE-EK
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 4 Channel
• For Use With: AT91SAM9XE-EK - KIT EVAL FOR AT91SAM9XEAT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

41.3.4
41.3.4.1
Table 41-6.
Table 41-7.
754
Dec value
Dec Factor
OUTPUT
VGA
640*480
QVGA
320*240
CIF
352*288
QCIF
176*144
AT91SAM9XE128/256/512 Preliminary
Preview Path
Scaling, Decimation (Subsampling)
Decimation Factor
Decimation and Scaler Offset Values
INPUT
0->15
X
F
F
F
F
This module resizes captured 8-bit color sensor images to fit the LCD display format. The resize
module performs only downscaling. The same ratio is applied for both horizontal and vertical
resize, then a fractional decimation algorithm is applied.
The decimation factor is a multiple of 1/16 and values 0 to 15 are forbidden.
Example:
Input 1280*1024 Output=640*480
Hratio = 1280/640 =2
Vratio = 1024/480 =2.1333
The decimation factor is 2 so 32/16.
16
1
352*288
NA
16
16
16
17
1.063
640*480
16
32
26
53
18
1.125
19
1.188
800*600
20
40
33
66
...
...
1280*1024
113
32
64
56
124
7.750
125
7.813
1600*1200
133
40
80
66
126
7.875
6254C–ATARM–22-Jan-10
2048*1536
102
170
127
7.938
51
85