at91cap7e ATMEL Corporation, at91cap7e Datasheet - Page 125
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at91cap7e
Manufacturer Part Number
at91cap7e
Description
Customizable Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.AT91CAP7E.pdf
(520 pages)
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Table 20-7.
20.6.5.4
Table 20-8.
8549A–CAP–10/08
Attribute Memory
Common Memory
I/O Mode
True IDE Mode
Pins
NCS4/CFCS0
NCS5/CFCS1
Mode Base Address
Multiplexing of CompactFlash Signals on EBI Pins
CompactFlash Mode Selection
Dedicated CompactFlash Interface Multiplexing
CS4A = 1
CFCS0
Figure 20-4. CompactFlash Read/Write Control Signals
Table 20-8 on page 125
Flash logic signals with other EBI signals on the EBI pins. The EBI pins in
dedicated to the CompactFlash interface as soon as the CS4A and/or CS5A field of the CSA
Register is set. These pins must not be used to drive any other memory devices.
The EBI pins in
responding CompactFlash interface is enabled (CS4A = 1 and/or CS5A = 1).
CFOE
NRD
CompactFlash Signals
1
0
External Bus Interface
Table 20-9 on page 126
SMC
NWR0_NWE
CS5A = 1
CFCS1
and
NRD
A23
A22
NWR0_NWE
Table 20-9 on page 126
CFWE
1
1
remain shared between all memory areas when the cor-
CS4A = 0
NCS4
1
1
0
1
0
1
illustrate the multiplexing of the Compact-
CompactFlash Logic
CFIOR
NRD
NRD
1
1
1
EBI Signals
0
1
0
1
CS5A = 0
NCS5
AT91CAP7E
Table 20-8
CFOE
CFWE
CFIOR
CFIOW
NWR0_NWE
NWR0_NWE
CFIOW
1
are strictly
125
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