NXP Semiconductors K22F series - Page 42

Section number Title Page
47.3.33
UART 7816 Wait Parameter Register A (UARTx_WP7816A_T0)............................................................1256
47.3.34
UART 7816 Wait Parameter Register A (UARTx_WP7816A_T1)............................................................1256
47.3.35
UART 7816 Wait Parameter Register B (UARTx_WP7816B_T0)............................................................ 1257
47.3.36
UART 7816 Wait Parameter Register B (UARTx_WP7816B_T1)............................................................ 1257
47.3.37
UART 7816 Wait and Guard Parameter Register (UARTx_WGP7816_T1)..............................................1258
47.3.38
UART 7816 Wait Parameter Register C (UARTx_WP7816C_T1)............................................................ 1258
47.4 Functional description...................................................................................................................................................1259
47.4.1 Transmitter...................................................................................................................................................1259
47.4.2 Receiver....................................................................................................................................................... 1265
47.4.3 Baud rate generation.................................................................................................................................... 1279
47.4.4 Data format (non ISO-7816)........................................................................................................................1281
47.4.5 Single-wire operation...................................................................................................................................1284
47.4.6 Loop operation............................................................................................................................................. 1285
47.4.7 ISO-7816/smartcard support........................................................................................................................1285
47.4.8 Infrared interface..........................................................................................................................................1290
47.5 Reset..............................................................................................................................................................................1292
47.6 System level interrupt sources...................................................................................................................................... 1292
47.6.1 RXEDGIF description..................................................................................................................................1292
47.7 DMA operation............................................................................................................................................................. 1293
47.8 Application information................................................................................................................................................1294
47.8.1 Transmit/receive data buffer operation........................................................................................................1294
47.8.2 ISO-7816 initialization sequence.................................................................................................................1294
47.8.3 Initialization sequence (non ISO-7816)....................................................................................................... 1296
47.8.4 Overrun (OR) flag implications................................................................................................................... 1297
47.8.5 Overrun NACK considerations....................................................................................................................1298
47.8.6 Match address registers................................................................................................................................1299
47.8.7 Modem feature............................................................................................................................................. 1299
47.8.8 IrDA minimum pulse width......................................................................................................................... 1300
47.8.9 Clearing 7816 wait timer (WT, BWT, CWT) interrupts..............................................................................1300
K22F Sub-Family Reference Manual, Rev. 4, 08/2016
42 NXP Semiconductors