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參數(shù)資料
| 型號(hào)： | SAA7893HL |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 消費(fèi)家電 |
| 英文描述： | Super audio media player |
| 中文描述： | SPECIALTY CONSUMER CIRCUIT, PQFP128 |
| 封裝： | 14 X 20 MM, 1.40 MM HEIGTH, PLASTIC, SOT-425-1, LQFP-128 |
| 文件頁(yè)數(shù)： | 41/66頁(yè) |
| 文件大?。?/td> | 1036K |
| 代理商： | SAA7893HL |
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Philips Semiconductors
SAA7893HL
Super audio media player
Product data
Rev. 02 — 26 February 2003
41 of 66
9397 750 10925
Koninklijke Philips Electronics N.V. 2003. All rights reserved.
9.2.1
Parallel mode
Polarity of Data_req, B_WCLK, B_FLAG and B_SYNC is programmable.
The UDE transmitter must react on the Data_req signal within 5 B_BCLK cycles. The
SAA7893HL samples the data on the positive slope of B_BCLK when the B_WCLK
signal is active.
When B_FLAG signal is active for one byte of the sector, the total sector will be
treated as erroneous.
The maximum clock frequency of B_BCLK is 20 MHz.
The Data_req line generated by the SAA7893HL is synchronized to the internal
sys_clk signal. Therefore, the Data_req line is asynchronous with respect to BCLK
line.
Fig 38. Timing diagram for UDE interface with level sync mode.
B_BCLK
Data_req
B_WCLK
B_FLAG
B_SYNC
Be_dat(7:0)
S
S
S
E
E
E
S
S
S
S
S
S
E
S
S
S
MCE054
tclk(h)
tsu
tsu
tclk(l)
th
th
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