SAM7S64_14 Datasheet, PDF (388/775 Pages) ATMEL Corporation – Internal High-speed Flash

31.7 Universal Synchronous Asynchronous Receiver Transmitter (USART) User Interface
Table 31-12. Memory Map
Offset
Register
0x0000
Control Register
0x0004
Mode Register
0x0008
Interrupt Enable Register
0x000C
Interrupt Disable Register
0x0010
Interrupt Mask Register
0x0014
Channel Status Register
0x0018
Receiver Holding Register
0x001C
Transmitter Holding Register
0x0020
Baud Rate Generator Register
0x0024
Receiver Time-out Register
0x0028
Transmitter Timeguard Register
0x2C - 0x3C
Reserved
0x0040
FI DI Ratio Register
0x0044
Number of Errors Register
0x0048
Reserved
0x004C
IrDA Filter Register
0x5C - 0xFC
Reserved
0x100 - 0x128 Reserved for PDC Registers
Name
US_CR
US_MR
US_IER
US_IDR
US_IMR
US_CSR
US_RHR
US_THR
US_BRGR
US_RTOR
US_TTGR
–
US_FIDI
US_NER
–
US_IF
–
–
Access
Write-only
Read-write
Write-only
Write-only
Read-only
Read-only
Read-only
Write-only
Read-write
Read-write
Read-write
–
Read-write
Read-only
–
Read-write
–
–
Reset
–
–
–
–
0x0
–
0x0
–
0x0
0x0
0x0
–
0x174
–
–
0x0
–
–
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
388