NXP Semiconductors K22F series, Reference Manual, Page: 1255 / 1407

NOTE
The ADT Counter starts counting on detection of the complete
TS Character. It must be noted that by this time, exactly 10
ETUs have elapsed since the start bit of the TS character. The
user must take this into account while programming this
register.
Address: Base a 3Ah offset
Bit 7 6 5 4 3 2 1 0
Read
ADTI_H
Write
Reset 0 0 0 0 0 0 0 0
UARTx_AP7816A_T0 field descriptions
Field Description
ADTI_H ATR Duration Time Integer High (C7816[TTYPE] = 0)
Used to calculate the value used for the ADT Counter. This register field provides the most significant byte
of the 16 bit ATR Duration Time Integer field ADTI formed by {AP7816A_T0[ADTI_H],
AP7816B_T0[ADTI_L]}. Programming a value of ADTI = 0 disables the ADT counter. This value is used
only when C7816[TTYPE] = 0. See
ATR Duration Time Counter .
47.3.32 UART 7816 ATR Duration Timer Register B
(UARTx_AP7816B_T0)
The AP7816B_T0 register contains variables used in the generation of the ATR Duration
Timer. This register may be read at any time. This register must be written to only when
C7816[ISO_7816E] is not set, except when writing 0 to clear the ADT Counter.
NOTE
The ADT Counter starts counting on detection of the complete
TS Character. It must be noted that by this time, exactly 10
ETUs have elapsed since the start bit of the TS character. The
user must take this into account while programming this
register.
Address: Base a 3Bh offset
Bit 7 6 5 4 3 2 1 0
Read
ADTI_L
Write
Reset 0 0 0 0 0 0 0 0
UARTx_AP7816B_T0 field descriptions
Field Description
ADTI_L ATR Duration Time Integer Low (C7816[TTYPE] = 0)
Chapter 47 Universal Asynchronous Receiver/Transmitter (UART)
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
NXP Semiconductors 1255