Datasheet

740
42023E–SAM–07/2013
ATSAM4L8/L4/L2
27.9.16 Slew Rate Register
Name:
SRR
Access Type: Read/Write
Offset:0x3C
Reset Value: 0x00000000
• FILTER: Input Spike Filter Control
• CLSLEW: Clock Slew Limit
Selects the slew limit of the TWCK output buffer in F/S-mode.
• CLDRIVEL: Clock Drive Strength LOW
Selects the pull-down drive strength of the TWCK output buffer in F/S-mode.
• DASLEW: Data Slew Limit
Selects the slew limit of the TWD output buffer in F/S-mode.
• DADRIVEL: Data Drive Strength LOW
Selects the pull-down drive strength of the TWD output buffer in F/S-mode.
Refer to
Section 42. ”Electrical Characteristics” on page 1120 for appropriates values of these register fields.
31 30 29 28 27 26 25 24
- - FILTER - - CLSLEW
23 22 21 20 19 18 17 16
----- CLDRIVEL
15 14 13 12 11 10 9 8
------ DASLEW
76543210
----- DADRIVEL
FILTER Value Function
0Reserved
1Reserved
2 Standard- or Fast-mode
3 Fast-mode plus