AT91RM9200-CI-002 Atmel, AT91RM9200-CI-002 Datasheet - Page 217

• Manufacturer Part Number: AT91RM9200-CI-002
• Description: IC ARM9 MCU 256 BGA
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91RM9200-CI-002

• Core Processor: ARM9
• Core Size: 16/32-Bit
• Speed: 180MHz
• Connectivity: EBI/EMI, Ethernet, I²C, MMC, SPI, SSC, UART/USART, USB
• Peripherals: POR
• Number Of I /o: 122
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: ROM
• Ram Size: 48K x 8
• Voltage - Supply (vcc/vdd): 1.65 V ~ 1.95 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 256-BGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

20.4
20.4.1
1768I–ATARM–09-Jul-09
Application Example
Burst Flash Interface
The Burst Flash Interface provides control, address and data signals to the Burst Flash Memory.
These signals are detailed in
the BFC functionality and operating modes.
possible connections of the BFC to some popular Burst Flash Memories.
Figure 20-2. Burst Flash Controller Connection Example
Signal Controlled Address Advance
Multiplexed Bus Disabled
Clock Controlled Address Advance
Multiplexed Bus Disabled
[D0:D15]
[A0:A22]
[D0:D15]
[A0:A19]
BFC
BFRDY
BFAVD
BFRDY
BFAVD
BFC
BFBAA
BFWE
BFOE
BFCK
BFCS
BFWE
BFOE
BFCK
BFCS
[D0:D15]
[A0:A19]
clk
ce
avd/lba
baa
oe
we
rdy/ind
[D0:D15]
[A0:A22]
clk
avd/adv
ce
oe
we
rdy/wait
Burst Flash
Burst Flash
Section 20.6 “Functional Description” on page 218
Figure 20-2
Signal Controlled Address Advance
Multiplexed Bus Enabled
Clock Controlled Address Advance
Multiplexed Bus Enabled
[A16:A21]
[A16:A19]
[D0:D15]
[D0:D15]
BFC
BFRDY
BFAVD
BFAVD
BFRDY
BFBAA
BFWE
BFC
BFWE
BFOE
BFCK
BFCS
BFCK
BFCS
BFOE
below presents an illustration of the
AT91RM9200
[AD0:AD15]
[A16:A21]
clk
avd
ce
oe
we
rdy
[AD0:AD15]
[A16:A19]
clk
ce
avd
baa
oe
we
rdy
Burst Flash
Burst Flash
which describes
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