ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 258

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

16.4.3
Name:
Address:
Access Type:
• URSTEN: User Reset Enable
0 = The detection of a low level on the pin NRST does not generate a User Reset.
1 = The detection of a low level on the pin NRST triggers a User Reset.
• URSTIEN: User Reset Interrupt Enable
0 = USRTS bit in RSTC_SR at 1 has no effect on rstc_irq.
1 = USRTS bit in RSTC_SR at 1 asserts rstc_irq if URSTEN = 0.
• ERSTL: External Reset Length
This field defines the external reset length. The external reset is asserted during a time of 2
allows assertion duration to be programmed between 60 μs and 2 seconds.
• KEY: Password
Should be written at value 0xA5. Writing any other value in this field aborts the write operation.
258
31
23
15
–
–
7
–
SAM3U Series
Reset Controller Mode Register
30
22
14
RSTC_MR
0x400E1208
Read-write
–
–
6
–
29
21
13
–
–
5
URSTIEN
28
20
12
–
–
4
KEY
27
19
11
–
3
–
26
18
10
–
2
–
ERSTL
(ERSTL+1)
25
17
–
9
1
–
Slow Clock cycles. This
6430D–ATARM–25-Mar-11
URSTEN
24
16
–
8
0