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參數(shù)資料
| 型號： | PRISM1RC |
| 廠商： | Intersil Corporation |
| 英文描述： | () |
| 中文描述： | （） |
| 文件頁數(shù)： | 6/12頁 |
| 文件大小： | 112K |
| 代理商： | PRISM1RC |
4-384
OSC_START (I) Pin 11
This signal is an active low pulse which starts the VCO (see
Figure 5).
SYNTH_LD (O) (Future Use) Pin 43
Lock detect signal coming back from synthesizer or network
processor can contain logic where it will not transmit without
a valid lock detect.
RADCLK (I) (Future Use) Pin 41
This signal can provide separate clock to synthesizer, if
needed.
TX_PE3 (I) (Future Use) Pin 42 and SPCSPWR (I)
(Future Use) Pin 40
These signals are provided for future advanced power
management and/or transmit control schemes.
Radio Card Programming
Programming Sequence
1. At power up, set all input signals to default values, see
Table 1.
2. Set signal values to baseband processor programming
mode (see Figures 2, 3).
3. Program baseband processor as specified in technical
data sheet. Example is provided below.
4. Set signal values to synthesizer programming mode (see
Figure 4).
5. Program synthesizer as specified in technical data sheet.
Example is provided below.
6. Start TX or RX sequence.
Important -
If power is removed from the card, all set ups
will be lost.
All (I) signals are input signals into this card. These signals
are assumed to be controlled by a MAC (Media Access
Controller) and are to be programmed as specified.
Examples are provided as reference only.
TABLE 1. CONTROL SIGNAL DEFAULT VALUES
CONTROL SIGNAL
VALUE
PA_PE(I)
Low
TXDATA(I)
Do Not Care
RX_PE_BB(I)
Low
SD/SYNTH_DATA(I/O)
Do Not Care
CLK/SYNTH_CLK(I)
Low
BB_AS(I)
Do Not Care
BB_RD/WR(I)
Do Not Care
BB_CS(I)
High
RESET_BB(I)
High
RADIO_PE(I)
High
SEL0(I)
Do Not Care
SEL1(I)
Do Not Care
TX_PE(I)
Low
RX_PE(I)
Low
SYNTH_LE(I)
Low
OSC_START(I)
High
NOTE: Check baseband processor data sheet for timing details.
FIGURE 2. BASEBAND PROCESSOR CONTROL PORT WRITE TIMING
1
2
3
4
5
6
7
0
1
2
3
4
5
6
7
0
LSB
MSB
MSB
BB_RD/WR
LSB
CLK/SYNTH_CLK
SD/SYNTH_DATA
BB_AS
BB_CS
RADIO_PE
ADDRESS IN
DATA IN
Application Note 9808
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