CMOSTEK CMT2300A, Руководство пользователя

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CMT2300A
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POR
VDD
POR Release
<= 1 ms
XTAL Stablize
<= 2.5 ms
Block Calibrations
<= 6.5 ms
Enters the SLEEP State Ready
for customer initializing
XTAL Start up
<= N ms
Figure 15. Power on sequence
When the calibration is completed, the chip enters the SLEEP mode. From this time, the MCU can switch the chip to different
operating states by setting the register CHIP_MODE_SWT<7:0>.
5.3.2 OperationState
CMT2300A has 7 operationstates:IDLE, SLEEP, STBY, RFS, RX, TFS and TX, as shown below.
Table 16. CMT2300A state and module open table
State Binary code Switch command Active Blocks Optional Blocks
IDLE 0000 soft_rst SPI, POR None
SLEEP 0001 go_sleep SPI, POR, FIFO LFOSC, Sleep Timer
STBY 0010 go_stby SPI, POR, XTAL, FIFO CLKO
RFS 0011 go_rfs SPI, POR, XTAL, PLL, FIFO CLKO
TFS 0100 go_tfs SPI, POR, XTAL, PLL, FIFO CLKO
RX 0101 go_rx SPI, POR, XTAL, PLL, LNA+MIXER+IF, FIFO CLKO, RX Timer
TX 0110 go_tx SPI, POR, XTAL, PLL, PA, FIFO CLKO