Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Datenbogen
Produktcode
ATSAM4S-WPIR-RD
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
358
Figure 20-7.
Full Page Programming
FF FF FF FF
FF FF FF FF
FF FF FF FF
FF FF FF FF
0xX00
0xX04
0xX08
0xX0C
0xX10
0xX14
0xX18
0xX1C
0xX00
0xX04
0xX08
0xX0C
0xX10
0xX14
0xX18
0xX1C
0xX00
0xX04
0xX08
0xX0C
0xX10
0xX14
0xX18
0xX1C
Before programming: Unerased page in Flash array
CA FE CA FE
CA FE CA FE
CA FE CA FE
CA FE CA FE
CA FE CA FE
CA FE CA FE
CA FE CA FE
CA FE CA FE
Step 1: Flash array after page erase
FF FF FF FF
FF FF FF FF
FF FF FF FF
FF FF FF FF
address space
for
Page N
address space
for
latch buffer
Step 2: Writing a page in the latch buffer
DE CA DE CA
DE CA DE CA
DE CA DE CA
DE CA DE CA
DE CA DE CA
DE CA DE CA
DE CA DE CA
DE CA DE CA
DE CA DE CA
CA FE CA FE
0xX00
0xX04
0xX08
0xX0C
0xX10
0xX14
0xX18
0xX1C
address space
for
Page N
Step 3: Page in Flash array after issuing
WP command and FRDY=1
DE CA DE CA
DE CA DE CA
DE CA DE CA
DE CA DE CA
DE CA DE CA
DE CA DE CA
DE CA DE CA
DE CA DE CA
DE CA DE CA
FF FF FF FF
32 bits wide
32 bits wide