參數(shù)資料
型號: UPD61051
廠商: NEC Corp.
英文描述: MOS INTEGRATED CIRCUIT MPEG2 AUDIO/VIDEO ENCODER
中文描述: 馬鞍山集成電路MPEG2音頻/視頻編碼器
文件頁數(shù): 36/106頁
文件大?。?/td> 824K
代理商: UPD61051
Data Sheet S15082EJ4V0DS
36
μ
PD61051, 61052
2.8
Memory Map
Firmware sets memory map such as video image area and usable work area. Firmware cabinet (temporal buffered
area) is the area which firmware does not use. Video Image area size is changed NTSC or PAL. Each area are
changed by the firmware.
Figure 2-15. Memory Map (1/2)
(a) 16 Mbit SDRAM by 2
Bank A
Video Stream
Firmware
00000H
Audio Stream
User Data 0
Header
Firmware
Firmware
7FFFFH
Bank B
Video Stream
Video
Image
Area
(b) Example for 64 Mbit SDRAM by 1
00000H
Bank A
Video Stream 0
Audio stream 0
User data 0
Header
Unused
Audio stream 1
00000H
User data 1
7FFFFH
7FFFFH
Bank B
Video Stream 0
Video
Image
Area
Bank C
Video Stream 1
Bank D
Video Stream 1
Instruction Pool
Instruction Pool
Usable Work Area
Usable Work Area
Video
Image
Area
Firmware
Firmware
Firmware
Firmware
Firmware
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