SAM9RL64 Atmel Corporation, SAM9RL64 Datasheet - Page 131
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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: 131 of 248
- Download datasheet (2Mb)
ARM DDI0198D
ARM926EJ-S
Optimizing for speed
Figure 5-15 on page 5-24 shows how to produce a large memory from two smaller
RAM blocks if you are optimizing for speed. Separate write enable control is required
for each RAM block:
WE_bank0 = ~DRADDR[14] & DRnRW
WE_bank1 = DRADDR[14] & DRnRW
No logic is added to the critical DRCS path, but both RAMs are enabled whenever
DRCS is asserted, resulting in higher power consumption.
DRADDR[17:0]
DRWD[31:0]
DRWBL[3:0]
DRSIZE[3:0]
DRRD[31:0]
Copyright © 2001-2003 ARM Limited. All rights reserved.
DRWAIT
DRnRW
DRIDLE
DRSEQ
DRCS
b1000
DRADDR[14]
CLK
DIN[31:0]
CLK
WE
CS DOUT[31:0]
RAM 64KB
A[13:0]
Bank 1
DRADDR[13:0]
BW[3:0]
Figure 5-14 Optimizing for power
Tightly-Coupled Memory Interface
DIN[31:0]
CLK
WE
CS DOUT[31:0]
RAM 64KB
A[13:0]
Bank 0
DRADDR[13:0]
BW[3:0]
5-23
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