AT91SAM9G45-CU-999 Atmel, AT91SAM9G45-CU-999 Datasheet - Page 171
AT91SAM9G45-CU-999
Manufacturer Part Number
AT91SAM9G45-CU-999
Description
IC MCU ARM9 APMC 324TFBGA
Manufacturer
Atmel
Series
AT91SAMr
Datasheet
1.AT91SAM9G45-EKES.pdf
(1218 pages)
Specifications of AT91SAM9G45-CU-999
Core Processor
ARM9
Core Size
16/32-Bit
Speed
400MHz
Connectivity
EBI/EMI, Ethernet, I²C, IrDA, MMC, SPI, SSC, UART/USART, USB
Peripherals
AC'97, DMA, I²S, LCD, POR, PWM, WDT
Number Of I /o
160
Program Memory Size
64KB (64K x 8)
Program Memory Type
ROM
Ram Size
128K x 8
Voltage - Supply (vcc/vdd)
0.9 V ~ 1.1 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
324-TFBGA
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Supplier Unconfirmed
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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Table 20-10. Shared CompactFlash Interface Multiplexing
Figure 20-7. CompactFlash Application Example
6438F–ATARM–21-Jun-10
Pins
NRD/CFOE
NWR0/NWE/CFWE
NWR1/NBS1/CFIOR
NWR3/NBS3/CFIOW
A25/CFRNW
Application Example
NWR1/CFIOR
NWR3/CFIOW
NCS4/CFCS0
A25/CFRNW
Figure 20-7 on page 171
CFRNW signals are not directly connected to the CompactFlash slot 0, but do control the direc-
tion and the output enable of the buffers between the EBI and the CompactFlash Device. The
timing of the CFCS0 signal is identical to the NCS4 signal. Moreover, the CFRNW signal
remains valid throughout the transfer, as does the address bus. The CompactFlash _WAIT sig-
nal is connected to the NWAIT input of the Static Memory Controller. For details on these
waveforms and timings, refer to the Static Memory Controller Section.
NWE/CFWE
EBI
NOE/CFOE
A22/REG
CD (PIO)
D[15:0]
CFCE1
CFCE2
NWAIT
A[10:0]
Access to CompactFlash Device
CompactFlash Signals
CFOE
CFWE
CFIOR
CFIOW
CFRNW
illustrates an example of a CompactFlash application. CFCS0 and
DIR
/OE
/OE
Access to Other EBI Devices
EBI Signals
NRD
NWR0/NWE
NWR1/NBS1
NWR3/NBS3
A25
CompactFlash Connector
D[15:0]
_CD1
_CD2
A[10:0]
_REG
_OE
_WE
_IORD
_IOWR
_CE1
_CE2
_WAIT
AT91SAM9G45
171
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