ST25R100 datasheet(55/86 Pages) STMICROELECTRONICS

55 / 86 page

Bit

Name

Default

Function

Comment

i_tdi_en<2:0> = 0 Wake-up I-channel disabled

i_tdi_en0

1: IRQ if i_adc < i_ref - i_diff

5.13.44

I-Channel WU difference register

Address: 2Bh

Type: RW

Domain: PD

Table 62. I-Channel WU difference register

Bit

Name

Default

Function

Comment

RFU

i_diff5

Defines the difference/delta from the reference that triggers an IRQ (unsigned)

Range: 0 to 63

i_diff4

i_diff3

i_diff2

i_diff1

i_diff0

5.13.45

I-Channel WU display ADC register

Address: 2Ch

Type: RO

Domain: PD

Table 63. I-Channel WU display ADC register

Bit

Name

Default

Function

Comment

i_adc7

8bit signed ADC part

Range: -128 to 127

i_adc6

i_adc5

i_adc4

i_adc3

i_adc2

i_adc1

i_adc0

5.13.46

I-Channel WU reference register

Address: 2Dh

Type: RO

Domain: PD

Table 64. I-Channel WU reference register

Bit Name Default

Function

Comment

i_ref7

8-bit signed reference

Range: -128 to 127

If iq_aaref = 1 the reference is automatically calculated, and this register is RO.

When iq_aaref = 0 the reference shall be set manually, and this register

becomes RW

i_ref6

ST25R100

Application information

DS14139 - Rev 5

page 55/86

ST25R100 Datasheet(PDF) 55 Page - STMicroelectronics

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