SAM9RL64 Atmel Corporation, SAM9RL64 Datasheet - Page 149
SAM9RL64
Manufacturer Part Number
SAM9RL64
Description
Manufacturer
Atmel Corporation
Datasheets
1.M40800.pdf
(284 pages)
2.SAM9260.pdf
(290 pages)
3.SAM9261.pdf
(248 pages)
4.SAM9R64.pdf
(903 pages)
5.SAM9R64.pdf
(52 pages)
Specifications of SAM9RL64
Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
240 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
118
Ext Interrupts
118
Usb Transceiver
1
Usb Speed
Hi-Speed
Usb Interface
Device
Spi
1
Twi (i2c)
2
Uart
5
Ssc
2
Sd / Emmc
1
Graphic Lcd
Yes
Video Decoder
No
Camera Interface
No
Adc Channels
6
Adc Resolution (bits)
10
Adc Speed (ksps)
220
Resistive Touch Screen
Yes
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
64
Self Program Memory
NO
External Bus Interface
1
Dram Memory
sdram
Nand Interface
Yes
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
1.08 to 1.32
Fpu
No
Mpu / Mmu
No / Yes
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- M40800 PDF datasheet
- SAM9260 PDF datasheet #2
- SAM9261 PDF datasheet #3
- SAM9R64 PDF datasheet #4
- SAM9R64 PDF datasheet #5
- Current page: 149 of 290
- Download datasheet (5Mb)
7.5.3
ARM DDI 0165B
WDATA[31:0]
RDATA[31:0]
DBGDEWPT
INSTR[31:0]
DBGACK
DA[31:0]
InMREQ
CLK
Watchpoints
Entry into debug state following a watchpointed memory access is imprecise. This is
necessary because of the nature of the pipeline.
You can build external logic, such as external watchpoint comparators, to extend the
functionality of the EmbeddedICE-RT logic. You must apply their output to the
DBGDEWPT input. This signal is ORed with the internally-generated Watchpoint
signal before being applied to the ARM9E-S core control logic.
The timing of the DBGDEWPT input makes it unlikely that data-dependent external
watchpoints are possible.
After a watchpointed access, the next instruction in the processor pipeline is always
allowed to complete execution. Where this instruction is a single-cycle data-processing
instruction, entry into debug state is delayed for one cycle while the instruction
completes. The timing of debug entry following a watchpointed load in this case is
shown in Figure 7-5.
Note
Copyright © 2000 ARM Limited. All rights reserved.
Figure 7-5 Watchpoint entry with data processing instruction
Debug Interface and EmbeddedICE-RT
7-11
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