AT91F40416 ATMEL Corporation, AT91F40416 Datasheet - Page 5

• Manufacturer Part Number: AT91F40416
• Description: At91 Arm(r) Thumb(r) Microcontroller
• Manufacturer: ATMEL Corporation

Read/Write Access
from the AVR
Timing Diagram
1302B–07/01
Only two registers can be directly accessed by the user:
•
•
Figure 2. RTC Write Cycle
The Internal Address Register (BaseAdr+0) stores the offset of the targeted RTC register
The Internal Data Register (BaseAdr+1) loads the data to the dedicated RTC register
identified by the offset.
dbus_out
dbus_in
out_en
iowe
iore
cp2
adr
cs
0x00 (offset)
X
write cycle
0xFF (data)
X
address as write)
(from same
read cycle
FF
X
X
X
RTC
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