ST25R3911B datasheet(87/116 Pages) STMICROELECTRONICS

87 / 116 page

1.3.47

Capacitive sensor display register

Address: 2Fh

Type: R

Table 77. Capacitive sensor display register

Bit

Name

Default

Function

Comments(1)

cs_cal4

Capacitive Sensor calibration value

Binary weighted, step 0.1 pF, max 3.1 pF

cs_cal3

cs_cal2

cs_cal1

cs_cal0

cs_cal_end

1: Calibration ended

cs_cal_err

1: Calibration error

1. At power-up and after Set Default command content of this register is set to 0.

1.3.48

Auxiliary display register

Address: 30h

Type: R

Table 78. Auxiliary display register

Bit Name Default

Function

Comments(1)

a_cha

0: AM

1: PM

Currently selected channel

efd_o

1: External field detected

External Field Detector output

tx_on

1: Transmission is active

osc_ok -

1: Xtal oscillation is stable

Indication that Xtal oscillator is active and its output is stable

rx_on

1: Receive coder is enabled

rx_act

1: Receive coder is receiving a message -

nfc_t

1: External Field Detector is active

in peer detection mode

en_ac

1: External Field Detector is active

in RF Collision Avoidance mode

1. At power-up and after Set Default command content of this register is set to 0.

ST25R3911B

Registers

DS11793 - Rev 6

page 87/116

ST25R3911B Datasheet(PDF) 87 Page - STMicroelectronics

ST25R3911B Datasheet(HTML) 87 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL