Datasheet

741
42023E–SAM–07/2013
ATSAM4L8/L4/L2
27.9.17 HS-mode Slew Rate Register
Name:
HSSRR
Access Type: Read/Write
Offset:0x40
Reset Value: 0x00000000
• FILTER: Input Spike Filter Control
0: Reserved
1: HS-mode
2: Reserved
3: Reserved
• CLSLEW: Clock Slew Limit
Selects the slew limit of the TWCK output buffer in HS-mode.
• CLDRIVEH: Clock Drive Strength HIGH
Selects the pull-up drive strength of the TWCK output buffer In HS-mode.
• CLDRIVEL: Clock Drive Strength LOW
Selects the pull-down drive strength of the TWCK output buffer in HS-mode.
• DASLEW: Data Slew Limit
Selects the slew limit of the TWD output buffer in HS-mode.
• DADRIVEL: Data Drive Strength LOW
Selects the pull-down drive strength of the TWD output buffer in HS-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
- - CLDRIVEH - CLDRIVEL
15 14 13 12 11 10 9 8
------ DASLEW
76543210
- DADRIVEL