AT91RM9200-QU-002 Atmel, AT91RM9200-QU-002 Datasheet - Page 88

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

Specifications of AT91RM9200-QU-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
• Processor Series: AT91Rx
• Core: ARM7TDMI
• Data Bus Width: 32 bit
• Data Ram Size: 16 KB
• Interface Type: 2-Wire, EBI, I2S, SPI, UART, USART
• Maximum Clock Frequency: 180 MHz
• Number Of Programmable I/os: 122
• Number Of Timers: 10 bit
• Operating Supply Voltage: 3 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: JTRACE-ARM-2M, MDK-ARM, RL-ARM, ULINK2
• Development Tools By Supplier: AT91SAM-ICE, AT91-ISP, AT91RM9200-EK
• Minimum Operating Temperature: - 40 C
• Eeprom Memory: 0 Bytes
• Input Output: 122
• Interface: EBI/EMI, UART/USART
• Ios: 122
• Memory Type: ROM
• Number Of Bits: 32
• Package Type: 208-pin PQFP
• Programmable Memory: 128K Bytes
• Timers: 3-16-bit
• Voltage, Range: 1.65-1.95 V
• Cpu Family: 91R
• Device Core: ARM920T
• Device Core Size: 32b
• Frequency (max): 180MHz
• Total Internal Ram Size: 16KB
• # I/os (max): 122
• Number Of Timers - General Purpose: 6
• Operating Supply Voltage (typ): 1.8/3.3V
• Operating Supply Voltage (max): 1.95/3.6V
• Operating Supply Voltage (min): 1.65/3V
• Instruction Set Architecture: RISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 208
• For Use With: AT91SAM-ICE - EMULATOR FOR AT91 ARM7/ARM9
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

13.3.3
13.3.3.1
13.3.3.2
88
AT91RM9200
Bootloader Sequence
Device Initialization
Download Procedure
The Boot Program performs device initialization followed by the download procedure. If unsuc-
cessful, the upload is done via the USB or debug serial port.
Initialization follows the steps described below:
Table 13-2.
The download procedure checks for a valid boot on several devices. The first device checked is
a serial DataFlash connected to the NPCS0 of the SPI, followed by the serial EEPROM con-
nected to the TWI and by an 8-bit parallel memory connected on NCS0 of the External Bus
Interface.
3.0
4.433619
6.144
7.864320
12.0
16.0
1. PLL setup
2. Stacks setup for each ARM mode
3. Main oscillator frequency detection
4. Interrupt controller setup
5. C variables initialization
6. Branch main function
– PLLB is initialized to generate a 48 MHz clock necessary to use the USB Device. A
register located in the Power Management Controller (PMC) determines the
frequency of the main oscillator and thus the correct factor for the PLLB.
Table 13-2
Crystals Supported by Software Auto-detection (MHz)
defines the crystals supported by the Boot Program.
3.2768
4.9152
6.4
8.0
12.288
17.734470
3.6864
5.0
6.5536
9.8304
13.56
18.432
3.84
5.24288
7.159090
10.0
14.31818
20.0
1768I–ATARM–09-Jul-09
4.0
6.0
7.3728
11.05920
14.7456