at32uc3b0512-z2ues ATMEL Corporation, at32uc3b0512-z2ues Datasheet - Page 132

• Manufacturer Part Number: at32uc3b0512-z2ues
• Description: 32-bit Avr Microcontroller
• Manufacturer: ATMEL Corporation

Table 14-5.
• PAGEN: Page number
Table 14-6.
• KEY: Write protection key
32059J–12/2010
Command
Write User Page
Erase User Page
Quick Page Read User Page
Command
No operation
Write Page
Clear Page Buffer
Lock region containing given Page
Unlock region containing given Page
Erase All
Write General-Purpose Fuse Bit
Erase General-Purpose Fuse Bit
Set Security Bit
Program GP Fuse Byte
Erase All GP Fuses
Quick Page Read
Write User Page
Erase User Page
Quick Page Read User Page
The PAGEN field is used to address a page or fuse bit for certain operations. In order to simplify programming, the PAGEN field
is automatically updated every time the page buffer is written to. For every page buffer write, the PAGEN field is updated with the
page number of the address being written to. Hardware automatically masks writes to the PAGEN field so that only bits
representing valid page numbers can be written, all other bits in PAGEN are always 0. As an example, in a flash with 1024
pages (page 0 - page 1023), bits 15:10 will always be 0.
This field should be written with the value 0xA5 to enable 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.
This field always reads as 0.
Set of commands
Semantic of PAGEN field in different commands
PAGEN description
Not used
The number of the page to write
Not used
Page number whose region should be locked
Page number whose region should be unlocked
Not used
GPFUSE #
GPFUSE #
Not used
WriteData[7:0], ByteAddress[2:0]
Not used
Page number
Not used
Not used
Not used
Value
13
14
15
Mnemonic
WUP
EUP
QPRUP
AT32UC3B
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