參數(shù)資料
型號(hào): μSAP70300-B03
廠商: NEC Corp.
元件分類: 8位微控制器
英文描述: 8 Bit Single Chip Microcontrollers
中文描述: 8位單片機(jī)微控制器
文件頁數(shù): 44/102頁
文件大?。?/td> 282K
代理商: ΜSAP70300-B03
34
μ
SAP703000-B03 USER'S MANUAL
RAM size (units: bytes)
Sampling ratio
BASE
4:4:4
4:2:2
4:1:1
4:1:1
Processing
[H:V = 2:2]
[H:V = 2:2]
[H:V = 2:2]
[H:V = 4:1]
Compression JPEGINFO
128
Work1
256
Work2
3072
MCU
384
512
768
768
Stack
128
Subtotal
3584
384
768
768
Expansion
JPEGINFO
128
Work1
256
Work2
8192
MCU
384
512
768
768
Stack
128
Subtotal
8704
384
512
768
768
Analysis
JPEGINFO
128
Work1
256
Stack
128
Subtotal
512
Example
The required memory size is as shown in the table below, provided conditions are as follows:
YCbCr/RGB:
Selected processing: Compression/expansion
Sampling ratio:
Only “4:1:1 [H:V = 2:2]” for both compression/expansion
YCbCr
ROM size (bytes)
RAM size (bytes)
Compression
Compression BASE + compression 4:1:1 Compression BASE + compression MCU 4:1:1
= 5.5K + 1.0K
= 3584 + 768
= 6.5K
= Approx. 5K
Expansion
Expansion BASE + expansion 4:1:1
= 4.5K + 0.7K
= 5.2K
Expansion BASE + expansion MCU 4:1:1
= 8704 + 768
= Approx. 10K
Total
Approx. 11.7K
Approx. 15K
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