Datasheet

802
SAM9N12/SAM9CN11/SAM9CN12 [DATASHEET]
11063K–ATARM–05-Nov-13
40.8 Universal Synchronous Asynchronous Receiver Transmitter (USART) User Interface
Notes: 1. Write is possible only in LIN Master node configuration.
Table 40-17. Register Mapping
Offset Register Name Access Reset
0x0000 Control Register US_CR Write-only –
0x0004 Mode Register US_MR Read-write –
0x0008 Interrupt Enable Register US_IER Write-only –
0x000C Interrupt Disable Register US_IDR Write-only –
0x0010 Interrupt Mask Register US_IMR Read-only 0x0
0x0014 Channel Status Register US_CSR Read-only –
0x0018 Receiver Holding Register US_RHR Read-only 0x0
0x001C Transmitter Holding Register US_THR Write-only –
0x0020 Baud Rate Generator Register US_BRGR Read-write 0x0
0x0024 Receiver Time-out Register US_RTOR Read-write 0x0
0x0028 Transmitter Timeguard Register US_TTGR Read-write 0x0
0x2C–0x3C Reserved – – –
0x0040 FI DI Ratio Register US_FIDI Read-write 0x174
0x0044 Number of Errors Register US_NER Read-only –
0x0048 Reserved – – –
0x004C IrDA Filter Register US_IF Read-write 0x0
0x0050 Manchester Encoder Decoder Register US_MAN Read-write 0xB0011004
0x0054 LIN Mode Register US_LINMR Read-write 0x0
0x0058 LIN Identifier Register US_LINIR Read-write
(1)
0x0
0x005C LIN Baud Rate Register US_LINBRR Read-only 0x0
0x0060–0x00E0 Reserved – – –
0x00E4 Write Protect Mode Register US_WPMR Read-write 0x0
0x00E8 Write Protect Status Register US_WPSR Read-only 0x0
0x00EC–0x00FC Reserved – – –