COnTenTS
vi
Seiko epson Corporation
S1C17624/604/622/602/621 TeChniCal Manual
16.6 SWT Interrupts ..............................................................................................................16-3
16.7 Control Register Details ................................................................................................16-4
Stopwatch Timer Control Register (SWT_CTL) ........................................................................ 16-4
Stopwatch Timer BCD Counter Register (SWT_BCNT) ........................................................... 16-4
Stopwatch Timer Interrupt Mask Register (SWT_IMSK) .......................................................... 16-5
Stopwatch Timer Interrupt Flag Register (SWT_IFLG)............................................................. 16-5
17.3.1 NMI/Reset Mode Selection .............................................................................17-1
17.3.2 WDT Run/Stop Control ...................................................................................17-1
17.3.3 WDT Reset .....................................................................................................17-2
17.3.4 Operations in HALT and SLEEP Modes .........................................................17-2
Watchdog Timer Control Register (WDT_CTL) ........................................................................ 17-2
Watchdog Timer Status Register (WDT_ST) ............................................................................ 17-3
18.1 UART Module Overview ................................................................................................18-1
18.2 UART Input/Output Pins ................................................................................................18-2
18.3 Transfer Clock ................................................................................................................18-2
18.4 Transfer Data Settings ...................................................................................................18-2
18.5 Data Transfer Control ....................................................................................................18-3
18.6 Receive Errors...............................................................................................................18-5
18.7 UART Interrupts ............................................................................................................18-6
18.8 IrDA Interface ................................................................................................................18-7
18.9 Control Register Details ................................................................................................18-8
) ............................................................................... 18-8
Transmit Data Registers (UART_TXD
)................................................................ 18-10
Receive Data Registers (UART_RXD
) ................................................................ 18-10
) ........................................................................... 18-10
) .......................................................................... 18-11
) ..................................................................... 18-12
19.1 SPI Module Overview ....................................................................................................19-1
19.2 SPI Input/Output Pins ....................................................................................................19-1
19.3 SPI Clock ......................................................................................................................19-2
19.4 Data Transfer Condition Settings ...................................................................................19-2
19.5 Data Transfer Control ....................................................................................................19-3
19.6 SPI Interrupts ................................................................................................................19-5
19.7 Control Register Details ................................................................................................19-6
) ........................................................................................ 19-6
Transmit Data Register (SPI_TXD
) .......................................................................... 19-7
Receive Data Register (SPI_RXD
) .......................................................................... 19-7
)..................................................................................... 19-7
20.1 I2CM Module Overview .................................................................................................20-1
20.2 I2CM Input/Output Pins .................................................................................................20-1
20.3 Synchronization Clock ...................................................................................................20-2
20.4 Settings Before Data Transfer .......................................................................................20-2