AT91RM9200-CI-002 Atmel, AT91RM9200-CI-002 Datasheet - Page 603

• 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: -

36.4
36.4.1
36.4.2
36.4.3
1768I–ATARM–09-Jul-09
Product Dependencies
I/O Lines
Power Management
Interrupt
The pins used for interfacing the compliant external devices may be multiplexed with PIO lines.
The programmer must first program the PIO controllers to assign the EMAC pins to their periph-
eral functions. In RMII mode, unused pins (see
used as general I/O lines.
The EMAC may be clocked through the Power Management Controller (PMC), so the program-
mer must first configure the PMC to enable the EMAC clock.
If not used, about 400 µA current consumption can be saved by switching the EMAC in Local
Loopback Mode with the following sequence:
The EMAC has an interrupt line connected to the Advanced Interrupt Controller (AIC). Handling
the EMAC interrupt requires programming the AIC before configuring the EMAC.
• EMAC clock is enabled
• EMAC Local Loopback is enabled
• EMAC clock is disabled
– write 0x1000000 in PMC_PCER
– set bit 1 in EMAC_CTL
– write 0x1000000 in PMC_PCDR
Table
36-1: MII/RMII Signal Mapping) can be
AT91RM9200
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