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): 10/106頁
文件大?。?/td> 824K
代理商: UPD61051
Data Sheet S15082EJ4V0DS
10
μ
PD61051, 61052
1.4
Audio Input/output Interface
After hardware reset, it becomes input. OALRCK, OABCK and OABD connect with 3.3 V V
DD
through the 10 k
pull up resistance. Firmware controls input/output of those pins.
Name
IO
Pin
Number
Function
Active
Polarity
OALRCK
IO
4
Left/Right clock
OABCK
IO
5
Bit clock
OABD
IO
6
Bit data
AMCLK
I
2
Audio clock
1.5
Stream Input Interface
Stream input corresponds to MPEG TS/PS stream. When slave mode (MPEG2-TS input with using valid signal),
data input is possible to select 8 bits parallel data or serial data mode. When serial data mode, data input to IS0.
Active polarity of ISREQ is selected by the port setup register.
Active polarity of ISCLK/ISSTB, ISSYNC ISERR and ISVLD are selected by firmware. These are unsettled after
the turning on.
Name
IO
Pin
Number
Function
Active
Polarity
ISREQ
O
55
Stream data request
Only parallel interface, this pin is active.
After reset, default is active low.
ISCLK/
ISSTB
I
53
Stream data strobe
After reset, default is ISCLK.
ISCLK
/ISSTB
I
53
Stream data clock
After reset, default is active high edge.
ISSYNC
I
52
Stream data synchronization
After reset, default is active high.
ISVLD
I
54
Stream data valid
After reset, default is active low.
IS1/
ISERR
I
43
Stream error
After reset, default is active high.
IS1
/ISERR
I
43
Stream data input
IS7 to IS2, IS0
I
51,49, 47
to 44, 42
Stream data input
Remark
In this table, means of reset are hardware reset by the RESET pin and ALL RESET of the reset register.
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