SAM7S256_14 Datasheet, PDF (309/775 Pages) ATMEL Corporation – ARM-based Flash MCU

29.7 Two-wire Interface (TWI) User Interface
Table 29-4. Register Mapping
Offset
Register
0x0000
Control Register
0x0004
Master Mode Register
0x0008
Reserved
0x000C
Internal Address Register
0x0010
Clock Waveform Generator Register
0x0020
Status Register
0x0024
Interrupt Enable Register
0x0028
Interrupt Disable Register
0x002C
Interrupt Mask Register
0x0030
Receive Holding Register
0x0034
Transmit Holding Register
0x0038 - 0x00FC Reserved
Name
TWI_CR
TWI_MMR
-
TWI_IADR
TWI_CWGR
TWI_SR
TWI_IER
TWI_IDR
TWI_IMR
TWI_RHR
TWI_THR
–
Access
Write-only
Read-write
-
Read-write
Read-write
Read-only
Write-only
Write-only
Read-only
Read-only
Read-write
–
Reset
N/A
0x0000
-
0x0000
0x0000
0x0008
N/A
N/A
0x0000
0x0000
0x0000
–
SAM7S Series [DATASHEET]
6175M–ATARM–26-Oct-12
309