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參數(shù)資料
| 型號(hào)： | WL100/PR/FP1R |
| 廠商： | ZARLINK SEMICONDUCTOR INC |
| 元件分類： | 網(wǎng)絡(luò)接口 |
| 英文描述： | DATACOM, WIRELESS LAN CIRCUIT, PQFP64 |
| 封裝： | PLASTIC, QFP-64 |
| 文件頁(yè)數(shù)： | 8/18頁(yè) |
| 文件大?。?/td> | 306K |
| 代理商： | WL100/PR/FP1R |
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WL100
15
Fig. 16 Timings for WL100 primary operation modes (not to scale)
Note 1.
In asynchronous systems, when the system
clock differs from the ones specified in Table 7,
the width of these pulses may become negligible
and the FIFO will fail to increment/decrement.
To avoid these race hazards all controller to
WL100 signals could be re-synchronised to
B_CLK, but this would take a large amount of
hardware. In most applications re-synchronising
the read/write strobes should be sufficient, the
relationship between the delayed and re-
synchronised RD and WR strobes to CS, ADDR
and DATA should be checked. A re-
synchronising circuit is shown below.
Fig. 17 Read and Write synchronising
RX/TX
PAOFF
CH
*
LOADB
NOISE
SD (6:0)
*
RXD
TXD
HOP TO
CHANNEL A
CD
*
CR
*
SYDN
**
NS
**
CT
**
RECEIVE DATA
DATA
t7
DIVERSITY
SENSE
CHAN A
NOISE
TRANSMIT
CHANNEL A
HOP TO
CHANNEL B
DIVERSITY
RECEIVE CHANNEL B
* CONTROL BITS
** STATUS BITS
t8
t9
t10
t12
t11
B_CLK
RD_FIFO = CS RD (B ADD = 0C)
RD_FIFO_LATCHED
B_CLK
WR_FIFO_LATCHED
READ FIFO DATA
WRITE FIFO DATA
DQ
B_CLK
RD ( WR)
RD and WR re-synchronising circuit
FIFO POINTER
DECREMENTED
(NOTE 1)
FIFO POINTER
INCREMENTED
(NOTE 1)
WR_FIFO = CS WR (B ADD = 0C)
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| WL1015-L | 制造商:RFHIC 制造商全稱:RFHIC 功能描述:Wideband LNA |
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| WL102B | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Wireless Data Controller |
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| WL102BC | 制造商:MITEL 制造商全稱:Mitel Networks Corporation 功能描述:Wireless Data Controller |
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