AT91RM9200-QI-002 Atmel, AT91RM9200-QI-002 Datasheet - Page 65

• 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: -

12.6.4.2
1768I–ATARM–09-Jul-09
Three-state Sequencer
Address Comparator
Data Comparator
Implementation Details
Figure 12-4. ETM9 Block
This section gives an overview of the Embedded Trace resources. For further details, see the
Embedded Trace Macrocell Specification, ARM Ltd. -IHI 0014H.
The sequencer has three possible next states (one dedicated to itself and two others) and can
change on every clock cycle. The sate transition is controlled with internal events. If the user
needs multiple-stage trigger schemes, the trigger event is based on a sequencer state.
In single mode, address comparators compare either the instruction address or the data address
against the user-programmed address.
In range mode, the address comparators are arranged in pairs to form a virtual address range
resource.
Details of the address comparator programming are:
Each full address comparator is associated with a specific data comparator. A data comparator
is used to observe the data bus only when load and store operations occur.
A data comparator has both a value register and a mask register, therefore it is possible to com-
pare only certain bits of a preprogrammed value against the data bus.
• The first comparator is programmed with the range start address.
• The second comparator is programmed with the range end address.
• The resource matches if the address is within the following range:
• Unpredictable behavior occurs if the two address comparators are not configured in the same
way.
– (address > = range start address) AND (address < range end address)
Bus Tracker
Controller
ARM920T
TAP
Scan Chain 6
Trigger, Sequencer, Counters
Control
Trace
Trace Enable, View Data
FIFO
ETM9
AT91RM9200
TPS-TPS0
TPK15-TPK0
TSYNC
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