Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
680
33.8
Serial Peripheral Interface (SPI) User Interface
Table 33-5.
Register Mapping
Offset
Register
Name
Access
Reset
0x00
Control Register
SPI_CR
Write-only
–
0x04
Mode Register
SPI_MR
Read-write
0x0
0x08
Receive Data Register
SPI_RDR
Read-only
0x0
0x0C
Transmit Data Register
SPI_TDR
Write-only
–
0x10
Status Register
SPI_SR
Read-only
0x000000F0
0x14
Interrupt Enable Register
SPI_IER
Write-only
–
0x18
Interrupt Disable Register
SPI_IDR
Write-only
–
0x1C
Interrupt Mask Register
SPI_IMR
Read-only
0x0
0x20 - 0x2C
Reserved
–
–
–
0x30
Chip Select Register 0
SPI_CSR0
Read-write
0x0
0x34
Chip Select Register 1
SPI_CSR1
Read-write
0x0
0x38
Chip Select Register 2
SPI_CSR2
Read-write
0x0
0x3C
Chip Select Register 3
SPI_CSR3
Read-write
0x0
0x40 - 0xE0
Reserved
–
–
–
0xE4
Write Protection Mode Register
SPI_WPMR
Read-write
0x0
0xE8
Write Protection Status Register
SPI_WPSR
Read-only
0x0
0x00EC - 0x00F8
Reserved
–
–
–
0x00FC
Reserved
–
–
–
0x100 - 0x124
Reserved for PDC Registers
–
–
–