SAM3A4C Atmel Corporation, SAM3A4C Datasheet - Page 507

• Manufacturer Part Number: SAM3A4C
• Manufacturer: Atmel Corporation

26.18.19 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.
11057A–ATARM–17-Feb-12
11057A–ATARM–17-Feb-12
31
23
15
–
–
7
0x400E0078 [0], 0x400E008C [1], 0x400E00A0 [2], 0x400E00B4 [3], 0x400E00C8 [4], 0x400E00DC [5],
0x400E00F0 [6], 0x400E0104 [7]
SMC_CYCLEx [x=0..7]
Read-write
0x00000000
30
22
14
–
–
6
29
21
13
–
–
5
28
20
12
–
–
4
NWE_CYCLE
NRD_CYCLE
27
19
11
–
–
3
26
18
10
–
–
2
25
17
–
9
–
1
SAM3X/A
SAM3X/A
NWE_CYCLE
NRD_CYCLE
24
16
8
0
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