AS3955 datasheet(30/111 Pages) AMSCO

30 / 111 page

Page 30

ams Datasheet

Document Feedback

[v1-01] 2015-Apr-29

AS3955 − Detailed Description

Fabrication Data FAB_CFG1

Figure 30:

Fabrication Data FAB_CFG1

Note(s) and/or Footnote(s):

1. This byte can be set only during production.

The fdel bits define frame delay time (FDT) adjustment and

represent a time compensation in number of clocks of carrier

frequency. The osct bits are trimming bits for the internal

oscillator.

Fabrication Data FAB_CFG2

Figure 31:

Fabrication Data FAB_CFG2

Note(s) and/or Footnote(s):

1. This byte can be set only during production.

Conf. Bit

Name

Default

Function

Note

fdel<3>

PCD to PICC frame delay time compensation;

frame compensation defined as fdel*1/fc

fdel<2>

fdel<1>

fdel<0>

osct<1>

Oscillator trimming bits

osct<0>

decc<1>

Decoder compensation register

decc<0>

Conf. Bit

Name

Default

Function

Note

test_mode

mod_r

1: decreased modulator switch resistance

miso_pd2

1: pull down on MISO, when \SS is low and

MISO is not driven by the AS3955

miso_pd1

1: pull down on MISO when \SS is high

rfu

AS3955 bảng dữ liệu(PDF) 30 Page - ams AG

AS3955 bảng dữ liệu(HTML) 30 Page - ams AG

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

bảng dữ liệu tải về

Link URL