ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 431

• 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

25.18.19 SMC Cycle Register
Name:
Address:
Access:
Reset:
• NWE_CYCLE: Total Write Cycle Length
The total write cycle length is the total duration in clock cycles of the write cycle. It is equal to the sum of the setup, pulse
and hold steps of the NWE and NCS signals. It is defined as:
Write cycle length = (NWE_CYCLE[8:7] * 256) + NWE_CYCLE[6:0] clock cycles.
• NRD_CYCLE: Total Read Cycle Length
The total read cycle length is the total duration in clock cycles of the read cycle. It is equal to the sum of the setup, pulse
and hold steps of the NRD and NCS signals. It is defined as:
Read cycle length = (NRD_CYCLE[8:7] * 256) + NRD_CYCLE[6:0] clock cycles.
6430D–ATARM–25-Mar-11
6430D–ATARM–25-Mar-11
31
23
15
–
–
7
0x400E0078 [0], 0x400E008C [1], 0x400E00A0 [2], 0x400E00B4 [3]
SMC_CYCLEx [x=0..3]
Read-write
0x00030003
30
22
14
–
–
6
29
21
13
–
–
5
28
20
12
–
–
4
NWE_CYCLE
NRD_CYCLE
27
19
11
–
–
3
26
18
10
–
–
2
SAM3U Series
SAM3U Series
25
17
–
9
–
1
NWE_CYCLE
NRD_CYCLE
24
16
8
0
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431