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參數(shù)資料
| 型號： | CC2420 |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | 2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver |
| 中文描述： | 2.4 GHz IEEE 802.15.4標(biāo)準(zhǔn)/ ZigBee功能的RF收發(fā)器 |
| 文件頁數(shù)： | 25/87頁 |
| 文件大小： | 1418K |
| 代理商： | CC2420 |
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SmartRF
CC2420
4-wire Serial Configuration and Data Interface
CC2420
is configured via a simple 4-wire
SPI-compatible interface (pins
SI
,
SO
,
SCLK
and
CSn
) where
CC2420
is the slave.
This interface is also used to read and
write buffered data (see page 37). All
address and data transfer on the SPI
interface is done most significant bit first.
Register access
There are 33 16-bit configuration and
status registers, 15 command strobe
registers, and two 8-bit registers to access
the separate transmit and receive FIFOs.
Each of the 50 registers is addressed by a
6-bit address. The RAM/Register bit (bit 7)
must be cleared for register access. The
Read/Write bit (bit 6) selects a read or a
write operation and makes up the 8-bit
address field together with the 6-bit
address.
In each register read or write cycle, 24 bits
are sent on the SI-line. The
CSn
pin (Chip
Select, active low) must be kept low during
this transfer. The bit to be sent first is the
RAM/Register bit (set to 0 for register
access), followed by the R/W bit (0 for
write, 1 for read). The following 6 bits are
the address-bits (A5:0
)
. A5 is the most
significant bit of the address and is sent
first. The 16 data-bits are then transferred
(D15:0), also MSB first. See Figure 8 for
an illustration.
The configuration registers can also be
read by the microcontroller via the same
configuration interface. The R/W bit must
be set high to initiate the data read-back.
CC2420
then returns the data from the
addressed register on the 16 clock cycles
following the register address. The
SO
pin
is used as the data output and must be
configured
as
an
microcontroller.
input
by
the
The timing for the programming is also
shown in Figure 8 with reference to Table
4. The clocking of the data on
SI
into the
CC2420
is done on the positive edge of
SCLK
. When the last bit, D0, of the 16
data-bits has been written, the data word
is loaded in the internal configuration
register.
Multiple registers may be written without
releasing
CSn
, as described in the Multiple
SPI access section on page 29.
The register data will be retained during
power down mode, but not when the
power-supply is turned off (e.g. by
disabling the voltage regulator using the
VREG_EN
pin). The registers can be
programmed in any order.
Chipcon AS
SmartRF
CC2420 Preliminary Datasheet (rev 1.2), 2004-06-09
Page 25 of 87
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| CC2420DK | LC2MOS 5 O RON SPST Switch; Package: PDIP; No of Pins: 16; Temperature Range: Industrial |
| CC2420SK | 2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver |
| CC4V | SM WATCH CRYSTAL MIL TEMP |
| CC4V-T1 | SM WATCH CRYSTAL MIL TEMP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| CC2420/T&R | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver |
| CC2420/TR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2.4 GHz IEEE 802.15.4 / ZigBee-ready RF Transceiver |
| CC2420DBK | 功能描述:Zigbee/802.15.4開發(fā)工具 CC2420 DEMO KIT 2 DEMO BOARDS RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:EM35x 頻率:2.4 GHz 接口類型:USB 工作電源電壓: |
| CC2420DK | 功能描述:Zigbee/802.15.4開發(fā)工具 CC2420 DEVELOPMENT KIT RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:EM35x 頻率:2.4 GHz 接口類型:USB 工作電源電壓: |
| CC2420EMK | 功能描述:Zigbee/802.15.4開發(fā)工具 CC2420 EVALUATION KT (2)PCBs & (2)ANTENNA RoHS:否 制造商:Silicon Labs 產(chǎn)品:Development Kits 工具用于評估:EM35x 頻率:2.4 GHz 接口類型:USB 工作電源電壓: |
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