SAM7S256_14 Datasheet, PDF (281/775 Pages) ATMEL Corporation – ARM-based Flash MCU

28.7 Serial Peripheral Interface (SPI) User Interface User Interface
Table 28-3. Register Mapping
Offset
Register
0x00
Control Register
0x04
Mode Register
0x08
Receive Data Register
0x0C
Transmit Data Register
0x10
Status Register
0x14
Interrupt Enable Register
0x18
Interrupt Disable Register
0x1C
Interrupt Mask Register
0x20 - 0x2C
Reserved
0x30
Chip Select Register 0
0x34
Chip Select Register 1
0x38
Chip Select Register 2
0x3C
Chip Select Register 3
0x004C - 0x00F8 Reserved
0x004C - 0x00FC Reserved
0x100 - 0x124 Reserved for the PDC
Name
SPI_CR
SPI_MR
SPI_RDR
SPI_TDR
SPI_SR
SPI_IER
SPI_IDR
SPI_IMR
SPI_CSR0
SPI_CSR1
SPI_CSR2
SPI_CSR3
–
–
Access
Write-only
Read-write
Read-only
Write-only
Read-only
Write-only
Write-only
Read-only
Read-write
Read-write
Read-write
Read-write
–
–
Reset
---
0x0
0x0
---
0x000000F0
---
---
0x0
0x0
0x0
0x0
0x0
–
–
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
281