NRF9E5 Datasheet, PDF (38/104 Pages) List of Unclassifed Manufacturers – 433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC

PRODUCT SPECIFICATION
nRF9 E5 Single Chip Transceiver with Embedded Microcontroller and ADC
11.5 ADC - Configuration Register Description
Parameter
Bitwidth Description
CSTARTN
ADCRUN
1
Positive edge of this signal will start one AD conversion when ADCRUN is
inactive. This bit is internally synchronized to the ADC clock
1
ADC running continuously when active.
CSTARTN is ignored in this case
ADC_PWR_
1
Enable ADC
UP
VFSSEL
1
Select reference for AD converter
0: Use internal band gap reference (nominally 1.22V)
1: Use external pin AREF for reference (ignored if CHSEL=[1xxx]).
CHSEL
4
Cannel select input
0000: AIN0
0001: AIN1
0010: AIN2
0011: AIN3
1xxx: internal VDD/3.
RESCTRL
DIFFMODE,
2
Set A/D converter resolution:
00: 6 bit
01: 8 bit
10: 10 bit
11: 12 bit
1
Enable differential measurements, AIN0 must be used as inverting input and one of
the other inputs AIN1 to AIN3, as selected by ADCSEL, must be used as
noninverting input.
ADC_
RL_JUST
1
Select left or right justified data format:
0: Data will be left justified in ADC_DATA_REG
1: Data will be right justified in ADC_DATA_REG
Table 23 ADC Configuration-register description.
11.6 Status-Register Description
Parameter
AM
CD
DR
EOC
ADC_
RFLAG
Bitwidth
1
1
1
1
3
Description
Address Match, indicate that the receiver has received an address equal to its own
identity.
Detailed description in chapter 9.8.
Carrier Detect, indicates that a carrier is found on the receiving channel. Detailed
description in chapter 9.7
Data Ready, indicate that the receiver has received a data package with correct
address and CRC. Detailed description in chapter 9.9.
End Of Conversion, indicates that an AD conversion is completed and that data is
placed in ADC_DATA_REG.
Overflow indication in ADC
RFLAG[2]: Underflow (ADCDATA = 0)
RFLAG[1]: Overflow (ADCDATA = 2^N-1)
RFLAG[0]: Over range = RFLAG[1] or RFLAG[2]
Table 24 Status-register description.
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone [phone] - Fax [phone]
Revision: 1.1
Page 38 of 104
June 2004