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| SI47XX-EVB Datasheet, PDF (11/164 Pages) Silicon Laboratories – Thank you for purchasing the Silicon Laboratories | |||
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2.1.2. Microcontroller
TC_BCLK
(reserved for digital Rx )
Jumper
J41
J79
USB
PB1
Reset
J74
JTAG
MCU
C8051F342
MD_GPIO3
MS_GPIO2
MD_GPIO1
Jumper
J65
MD_GP4
MS_RSTB
S_GPO3/DCLK
SD_GPO1
MS_SENB
MS_SCLK
MS_SDIO
Si47xx-EVB
Daughterboard
19 18 17
Si47xx
RST~ 5
678
Figure 5. MCU Block Diagram
The Si47xx EVB uses a Silicon Laboratories' C8051F342 microcontroller to control the Si47xx and to provide USB
connectivity from the host PC (via connector J79). The LED D1 illuminates to confirm that power is being properly
supplied to the C8051F342 and firmware has loaded. Push-button PB1 manually resets the C8051F342. The JTAG
connector J74 is used to program the C8051F342 at production time, and is not required thereafter.
Rev. 0.8
11
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