at91cap7e ATMEL Corporation, at91cap7e Datasheet - Page 46
at91cap7e
Manufacturer Part Number
at91cap7e
Description
Customizable Microcontroller
Manufacturer
ATMEL Corporation
Datasheet
1.AT91CAP7E.pdf
(520 pages)
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11.4
11.4.1
46
Programmability Options
AT91CAP7E
Mode-Bits
Table 11-1.
Mode-Bit
0
1
2
3
4
5
6
7
Mode-bits description
•
•
•
•
An approximation formula for the access time, from the ARM inside the CAP7E to the pe-
ripherals in the FPGA is shown below:
Inside the FPGA, the module called “CAP7E Control”, produces a reset and provides the dif-
ferent modes under reset conditions for the CAP7E. The RTL provided by ATMEL lets the
user configure their FPGA interface. By default, all mode bits are zeroes.
The following table shows the description and value for the emulation/modes bits supported
by CAP7E.
t3: Time for FPGA-Peripheral response
t4: Time to transfer response back to CAP7E (4 cycles single AHB interface, 8 cycles
dual AHB interface)
t5: Time to read back the response/data from FPGA to the internal CAP7E AHB bus
t6: Time for introduced wait cycles
CAP7 in ARM MODE
used for emulation of
used for emulation of
Slave mode select 2
Internal ROM select
Master mode select
Slave mode select 1
ADC / LVDS Select
PIOB mode select
Disable Pullups
Description
CAP7 only
CAP7 only
T
access
= t1 + t2 + t3 + t4 + t5
Single Master Mode
- use only Master A
SlaveC Mode - use
SlaveA Mode - use
Use internal ROM
CAP7E mode
Use Pull-Ups
only Slave C
only Slave A
Use PIOB
Use ADC
0
PDC, and APB bridge
SlaveC-D Mode - use
SlaveA-B Mode - use
use Masters A and B
Dual Master Mode -
CAP7-ARM emula-
Use external ZBT
Use FPIF IRQ’s,
Slaves C and D
Disable-Pullups
Slaves A and B
Use LVDS
tion mode
1
8549A–CAP–10/08
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