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16.6 Stopwatch Timer Interrupts ......................................................................................... 16-6
16.7 Control Register Details ............................................................................................... 16-8
0x5020: Stopwatch Timer Control Register (SWT_CTL) .......................................................... 16-9
0x5021: Stopwatch Timer BCD Counter Register (SWT_BCNT) ............................................ 16-10
0x5022: Stopwatch Timer Interrupt Mask Register (SWT_IMSK) ........................................... 16-11
0x5023: Stopwatch Timer Interrupt Flag Register (SWT_IFLG) .............................................. 16-12
16.8 Precautions ................................................................................................................. 16-13
17 Watchdog Timer (WDT) ..............................................................................................17-1
17.1 Watchdog Timer Overview ........................................................................................... 17-1
17.2 Operation Clock ........................................................................................................... 17-2
17.3 Watchdog Timer Control .............................................................................................. 17-3
17.3.1 NMI/Reset Mode Selection ............................................................................ 17-3
17.3.2 Watchdog Timer Run/Stop Control ............................................................... 17-3
17.3.3 Watchdog Timer Resetting ............................................................................ 17-3
17.3.4 Operation in Standby Mode .......................................................................... 17-3
17.4 Control Register Details ............................................................................................... 17-4
0x5040: Watchdog Timer Control Register (WDT_CTL) ........................................................... 17-5
0x5041: Watchdog Timer Status Register (WDT_ST) .............................................................. 17-6
17.5 Precautions .................................................................................................................. 17-7
18 UART ...........................................................................................................................18-1
18.1 UART Configuration ..................................................................................................... 18-1
18.2 UART Pin ...................................................................................................................... 18-2
18.3 Transfer Clock .............................................................................................................. 18-3
18.4 Transfer Data Settings .................................................................................................. 18-4
18.5 Data Transfer Control ................................................................................................... 18-5
18.6 Receive Errors .............................................................................................................. 18-8
18.7 UART Interrupts ........................................................................................................... 18-9
18.8 IrDA Interface .............................................................................................................. 18-11
18.9 Control Register Details .............................................................................................. 18-13
0x4100: UART Status Register (UART_ST) ............................................................................. 18-14
0x4101: UART Transmit Data Register (UART_TXD) ............................................................... 18-16
0x4102: UART Receive Data Register (UART_RXD) ............................................................... 18-17
0x4103: UART Mode Register (UART_MOD) .......................................................................... 18-18
0x4104: UART Control Register (UART_CTL) ......................................................................... 18-19
0x4105: UART Expansion Register (UART_EXP) .................................................................... 18-20
18.10 Precautions ............................................................................................................... 18-21
19 SPI ...............................................................................................................................19-1
19.1 SPI Configuration ......................................................................................................... 19-1
19.2 SPI Input/Output Pins .................................................................................................. 19-2
19.3 SPI Clock ..................................................................................................................... 19-3
19.4 Data Transfer Condition Settings ................................................................................. 19-4
19.5 Data Transfer Control ................................................................................................... 19-5
19.6 SPI Interrupts ............................................................................................................... 19-8
19.7 Control Register Details .............................................................................................. 19-10
0x4320: SPI Status Register (SPI_ST) ..................................................................................... 19-11
0x4322: SPI Transmit Data Register (SPI_TXD) ...................................................................... 19-12
0x4324: SPI Receive Data Register (SPI_RXD) ....................................................................... 19-13
0x4326: SPI Control Register (SPI_CTL) ................................................................................. 19-14
19.8 Precautions ................................................................................................................. 19-16
S1C17001 TECHNICAL MANUAL
EPSON
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