AT91RM9200-QI-002 Atmel, AT91RM9200-QI-002 Datasheet - Page 161

• Manufacturer Part Number: AT91RM9200-QI-002
• Description: IC ARM9 MCU 208 PQFP
• Manufacturer: Atmel
• Series: AT91SAMr

Specifications of AT91RM9200-QI-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: 208-MQFP, 208-PQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -
• Data Converters: -

Figure 18-8. Connection to a 16-bit Data Path Device without Byte Write Capability
18.6.2.3
Figure 18-9. Write Access with 0 Wait State
Figure 18-10. Write Access with 1 Wait State
1768I–ATARM–09-Jul-09
Write Data Hold Time
D[15:0]
A[22:0]
NWE
MCK
NCS
During write cycles, data output becomes valid after the rising edge of MCK and remains valid
after the rising edge of NWE. During a write access, the data remain on the bus 1/2 period of
MCK after the rising edge of NWE. See
D[15:0]
A[22:0]
SMC
NWE
MCK
NCS
D[15:8]
A[19:1]
D[7:0]
NCS2
NWE
NUB
NRD
NLB
Figure 18-9
D[7:0]
D[15:8]
A[18:0]
Write Enable
Output Enable
Memory Enable
and
Figure
18-10.
AT91RM9200
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