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CC2500-RTR1 数据表(PDF) 66 Page - Texas Instruments

部件名 CC2500-RTR1
功能描述  Single Chip Low Cost Low Power RF Transceiver
PDF  84 Pages
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制造商  TI [Texas Instruments]
网页  http://www.ti.com
标志 TI - Texas Instruments

CC2500-RTR1 数据表(HTML) 66 Page - Texas Instruments

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CC2500
PRELIMINARY Data Sheet (Rev.1.2)
SWRS040A
Page 66 of 83
0x18: MCSM0 – Main Radio Control State Machine configuration
Bit
Field Name
Reset
R/W
Description
7:6
Reserved
R0
5:4
FS_AUTOCAL[1:0]
0 (00)
R/W
Automatically calibrate when going to RX or TX, or back to IDLE
Setting
When to perform automatic calibration
0 (00)
Never (manually calibrate using SCAL strobe)
1 (01)
When going from IDLE to RX or TX (or FSTXON)
2 (10)
When going from RX or TX back to IDLE
3 (11)
Every 4
th time when going from RX or TX to IDLE
In some automatic wake-on-radio (WOR) applications, using
setting 3 (11) can significantly reduce current consumption.
3:2
PO_TIMEOUT
1 (01)
R/W
Programs the number of times the six-bit ripple counter must
expire after XOSC has stabilized before CHP_RDYn goes low.
If XOSC is on (stable) during power-down, PO_TIMEOUT
should be set so that the regulated digital supply voltage has
time to stabilize before CHIP_RDYn goes low (PO_TIMEOUT =
2 recommended).
If XOSC is off during power-down, the regulated digital supply
voltage has time to stabilize while waiting for the crystal to be
stable and PO_TIMEOUT can be set to 0.
Setting
Expire count
Timeout after XOSC start
0 (00)
1
Approx. 2.3 – 2.4 µs
1 (01)
16
Approx. 37 – 39 µs
2 (10)
64
Approx. 149 – 155 µs
3 (11)
256
Approx. 597 – 620 µs
Exact timeout depends on crystal frequency.
1
PIN_CTRL_EN
0
R/W
Enables the pin radio control option
0
XOSC_FORCE_ON
0
R/W
Force the XOSC to stay on in the SLEEP state.



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