Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Ficha De Dados

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SAM4S Series [DATASHEET]

Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14

GETD, GLB, 

GGPB, STUI, 

SPUI, GCALB, 

WUS, EUS, STUS, 

SPUS, EA

Commands requiring 

no argument, 

including Erase all 

command

FARG is meaningless, must be written with 0

ES

Erase sector 

command

FARG must be written with any page number within the sector to be erased

EPA

Erase pages 

command

FARG[1:0] defines the number of pages to be erased
The start page must be written in FARG[15:2].
FARG[1:0] = 0: Four pages to be erased. FARG[15:2] = Page_Number Modulo 4
FARG[1:0] = 1: Eight pages to be erased. FARG[15:2] = Page_Number Modulo 8
FARG[1:0] = 2: Sixteen pages to be erased. FARG[15:2] = Page_Number Modulo 16
FARG[1:0] = 3: Thirty-two pages to be erased. FARG[15:2] = Page_Number Modulo 

32
Refer to Table 20-4 on page 360.

WP, WPL, EWP, 

EWPL

Programming 

commands

FARG must be written with the page number to be programmed

SLB, CLB

Lock bit commands

FARG defines the page number to be locked or unlocked

SGPB, CGPB

GPNVM commands

FARG defines the GPNVM number to be programmed

0x5A

PASSWD

The 0x5A value enables the command defined by the bits of 

the register. If the field is written with a different value, the write 

is not performed and no action is started.