at89c5131a ATMEL Corporation, at89c5131a Datasheet - Page 7

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at89c5131a

Manufacturer Part Number
at89c5131a
Description
Usb Microcontrollers
Manufacturer
ATMEL Corporation
Datasheet

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Figure 2. High-pin Count Regular Boot Process
4287C–USB–11/04
S ta rt A p p lica tio n
E N B O O T = 0
P C = 0000h
S ta rt U se r B o o tlo a d e r
Y es
FC O N = 00h
S B V < 7Fh
Y es
H ardw are
C ondition
B LJ B = 1
R E S E T
AT89C5131A USB Bootloader
N o
N o
N o
N o
Y es
E N B O O T = 1
FC O N = 0F h
P C = F400h
Y es
B it E N B O O T in A U XR 1 R egis ter is
Initialized with B LJ B inverted
E N B O O T = 1
F C O N = 00h
P C = F 400h
S ta rt B o o tlo a d e r
7

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