NXP Semiconductors K32 L2A Series, Reference Manual, Page: 503 / 1379

EMVSIMx_TX_STATUS field descriptions (continued)
Field Description
4
ETCF
Early Transmit Complete Flag
Used to indicate that the EMV SIM transmitter has finished sending the last byte in transmit FIFO (if
XMT_CRC_LRC = 0) or finished sending the LRC or CRC byte (if XMT_CRC_LRC = 1). This bit differs
from the TC bit in that it is set before the guard time of the last byte has elapsed. The ETC flag will create
an interrupt if ETC_IM in the INT_MASK register is low. The ETC bit is a write-one-to-clear bit.
0 Transmit pending or in progress
1 Transmit complete (default)
3
TFE
Transmit FIFO Empty Flag
Used to indicate that the EMV SIM transmit FIFO has been emptied. This bit will be set when the last byte
in the transmit FIFO has been transferred out of the EMV SIM transmitter to the Smart Card successfully.
TFE will also be set when the TNTE flag is set. The TFE flag will create an interrupt if TFE_IM in the
INT_MASK register is low. The TFE bit is a write-one-to-clear bit.
0 Transmit FIFO is not empty
1 Transmit FIFO is empty (default)
2–1
Reserved
This field is reserved.
This read-only field is reserved and always has the value 0.
0
TNTE
Transmit NACK Threshold Error Flag
Used to indicate the transmit NACK threshold has been reached. When TNTE is high, no further
transmissions will be done until the TNTE flag is cleared. Any data transmissions still pending in the
transmit FIFO will be aborted, and the TC, ETC, and TFE flags will be set. The TNTE flag will create an
interrupt if TNACK_IM in the INT_MASK register is low. The TNTE bit is a write-one-to-clear bit.
0 Transmit NACK threshold has not been reached (default)
1 Transmit NACK threshold reached; transmitter frozen
Chapter 21 Smart Card Interface Module (EMV SIM)
K32 L2A Reference Manual, Rev. 2, 01/2020
NXP Semiconductors 503