Atmel SAM4L Xplained Pro Starter Kit Atmel ATSAM4L-XSTK ATSAM4L-XSTK Data Sheet
Product codes
ATSAM4L-XSTK
757
42023E–SAM–07/2013
ATSAM4L8/L4/L2
28.9
User Interface
Note:
1. The reset values for these registers are device specific. Refer to the Module Configuration section at the end of this chapter.
Table 28-6.
TWIS Register Memory Map
Offset
Register
Register Name
Access
Reset
0x00
Control Register
CR
Read/Write
0x00000000
0x04
NBYTES Register
NBYTES
Read/Write
0x00000000
0x08
Timing Register
TR
Read/Write
0x00000000
0x0C
Receive Holding Register
RHR
Read-only
0x00000000
0x10
Transmit Holding Register
THR
Write-only
0x00000000
0x14
Packet Error Check Register
PECR
Read-only
0x00000000
0x18
Status Register
SR
Read-only
0x00000002
0x1C
Interrupt Enable Register
IER
Write-only
0x00000000
0x20
Interrupt Disable Register
IDR
Write-only
0x00000000
0x24
Interrupt Mask Register
IMR
Read-only
0x00000000
0x28
Status Clear Register
SCR
Write-only
0x00000000
0x2C
Parameter Register
PR
Read-only
-
0x30
Version Register
VR
Read-only
-
0x34
HS-mode Timing Register
HSTR
Read/Write
0x00000000
0x38
Slew Rate Register
SRR
Read/Write
0x00000000
0x3C
HS-mode Slew Rate Register
HSSRR
Read/Write
0x00000000