at91cap7e ATMEL Corporation, at91cap7e Datasheet - Page 169
at91cap7e
Manufacturer Part Number
at91cap7e
Description
Customizable Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.AT91CAP7E.pdf
(520 pages)
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21.14.3
Register Name:
Access Type:
• 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
8549A–CAP–10/08
31
23
15
–
–
7
SMC Cycle Register
30
22
14
–
–
6
29
21
13
–
–
5
SMC_CYCLE[0..7]
Read/Write
28
20
12
–
–
4
NWE_CYCLE
NRD_CYCLE
27
19
11
–
–
3
26
18
10
–
–
2
25
17
–
9
–
1
AT91CAP7E
NWE_CYCLE
NRD_CYCLE
24
16
8
0
169
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