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参数资料
| 型号： | MICRF505DEV1 |
| 厂商： | Micrel Inc |
| 文件页数： | 11/42页 |
| 文件大小： | 0K |
| 描述： | KIT DEV RADIOWIRE 850-950MHZ |
| 标准包装： | 1 |
| 系列： | RadioWire® |
| 类型： | 收发器，ISM |
| 频率： | 850MHz ~ 950MHz |
| 适用于相关产品： | MICRF505 |
| 已供物品： | 2 个板，电池，线缆，CD |
| 产品目录页面： | 571 (CN2011-ZH PDF) |
| 其它名称： | 576-1606 |
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Micrel
Writing to All Registers
After a power-on, all writable registers should be
written. This is described here.
Writing to all register can be done at any time. To
get the simplest firmware, always write to all
registers. The price to pay for the simplicity is
increased write-time, which leads to increased time
MICRF505BML/YML
Writing to n Registers having Incremental
Addresses
In addition to entering all bytes, it is also possible to
enter a set of n bytes, starting from address i = “A6,
A5, … A0”. Typical example: Clock in a new set of
frequency dividers (i.e. change the RF frequency).
“Incremental addresses”. Registers to be written are
located in i, i+1, i+2.
to change the way the MICRF505 works.
What to write
What to write
Field
Comments
1
Octet: wanted values for
Octet: wanted values
ControlRegister0. 2
octet wants values for
octets. So the 22
Field
Address:
R/W bit:
Values:
Comments
‘000000’ (address of the first register to write
to, which is 0)
“0” for writing
st
nd
for ControlRegister1 and so on for all of the
nd
Address:
R/W bit:
Values:
7 bit = A6, A5, …A0 (A6 = msb. A0 = lsb)
(address of first byte to write to)
“0” for writing
n* 8 bits =
D7, D6, …D0 (D7 = msb, D0 = lsb) (written
to control reg. with address ”i”)
D7, D6, …D0 (D7 = msb, D0 = lsb) (written
to control reg. with address ”i+1”)
ControlRegister21. Refer to the specific
sections of this document for actual values.
Table 4.
“Address” and “R/W bit” together make 1 octet.
In addition, 22 octets with programming bits are entered.
In total, 23 octets are clocked into the MICRF505.
How to write:
D7, D6, …D0 (D7 = msb, D0 = lsb) (written
to control reg. with address ”i+n-1”)
Table 5.
“Address” and “R/W bit” together make 1 octet.
In addition, n octets with programming bits are entered.
Totally, 1 +n octets are clocked into the MICRF505.
?
Bring CS high
How to write:
?
Use SCLK and IO to clock in the 23 octets
?
Bring CS high
? Bring CS low
Refer to the figure in the next section, “Writing to n
registers having incremental addresses”.
?
?
Use SCLK and IO to clock in the 1 + n
octets
Bring CS low
In Figure 1, IO is changed at positive edges of SCLK. The
MICRF505 samples the IO line at negative edges. The
value of the R/W bits is always “0” for writing.
CS
SCLK
IO
A6
A5
A0
RW
D7
D6
D2
D1
D0
Address of first
register to write to,
RW Data to write
into register i
Data to write
into register i+1
register i
Figure 2.
Internal load pulse made here
October 2006
11
M9999-103106
+1 408-944-0800
相关PDF资料 |
PDF描述 |
|---|---|
| MICRF506DEV1 | EVAL BOARD EXPERIMENTAL MICRF506 |
| MICRF507YML TR | TXRX FSK LOW PWR W/AMP 32MLF |
| MICRF600DEV1 | KIT DEV RADIOWIRE 902-928MHZ |
| MK01-C | SENSOR REED SPST-NO SMD |
| MK01-H | SENSOR REED SPDT-CHANGE SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MICRF505DEV1 | 制造商:Micrel Inc 功能描述:KIT MICRF505 EVALUATION |
| MICRF505L | 制造商:MICREL 制造商全称:Micrel Semiconductor 功能描述:850MHz and 950MHz ISM Band Transceiver |
| MICRF505LYML | 制造商:Rochester Electronics LLC 功能描述: 制造商:RF Micro Devices Inc 功能描述: |
| MICRF505LYML TR | 功能描述:射频收发器 850MHz to 950MHz, 2.25V to 5.5V FSK Transceiver with +10dBm Power Amplifier RoHS:否 制造商:Atmel 频率范围:2322 MHz to 2527 MHz 最大数据速率:2000 Kbps 调制格式:OQPSK 输出功率:4 dBm 类型: 工作电源电压:1.8 V to 3.6 V 最大工作温度:+ 85 C 接口类型:SPI 封装 / 箱体:QFN-32 封装:Tray |
| MICRF505YML | 制造商:Micrel Inc 功能描述:433/915MHZ ITRANSCEIVER SMD MLF32 制造商:Micrel Inc 功能描述:433/915MHZ ITRANSCEIVER, SMD, MLF32 制造商:Micrel Inc 功能描述:433/915MHZ ITRANSCEIVER, SMD, MLF32; Frequency Min:850MHz; Frequency Max:950MHz; Modulation Type:FSK; Sensitivity dBm:-111dBm; Data Rate:200Kbps; Supply Voltage Min:2V; Supply Voltage Max:2.5V; RF IC Case Style:MLF; No. of Pins:32; ;RoHS Compliant: Yes |
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