Input parameters when initializing ISO7816 mode.

#include <usart.h>

Data Fields
int	bit_order
	Bit order in transmitted characters: . More...

int	dis_suc_nack
	Disable successive NACKs. More...

unsigned short	fidi_ratio
	The number of ISO7816 clock ticks in every bit period (1 to 2047, 0 = disable clock). More...

int	inhibit_nack
	Inhibit Non Acknowledge: . More...

unsigned long	iso7816_hz
	Set the frequency of the ISO7816 clock. More...

unsigned char	max_iterations
	Max number of repetitions (0 to 7). More...

unsigned char	paritytype
	How to calculate the parity bit: USART_EVEN_PARITY for normal mode or USART_ODD_PARITY for inverse mode. More...

int usart_iso7816_options_t::bit_order

Bit order in transmitted characters:
.

0: LSB first;
1: MSB first.

Referenced by usart_init_iso7816().

int usart_iso7816_options_t::dis_suc_nack

Disable successive NACKs.

Successive parity errors are counted up to the value in the max_iterations field. These parity errors generate a NACK on the ISO line. As soon as this value is reached, no additional NACK is sent on the ISO line. The ITERATION flag is asserted.

Referenced by usart_init_iso7816().

unsigned short usart_iso7816_options_t::fidi_ratio

The number of ISO7816 clock ticks in every bit period (1 to 2047, 0 = disable clock).

Bit rate = iso7816_hz / fidi_ratio.

Referenced by usart_init_iso7816().

int usart_iso7816_options_t::inhibit_nack

Inhibit Non Acknowledge:
.