SAM9G20 Atmel Corporation, SAM9G20 Datasheet - Page 780
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SAM9G20
Manufacturer Part Number
SAM9G20
Description
Manufacturer
Atmel Corporation
Datasheets
1.SAM9261.pdf
(248 pages)
2.SAM9261.pdf
(1274 pages)
3.SAM9261.pdf
(43 pages)
4.SAM9G20.pdf
(42 pages)
5.SAM9G20.pdf
(832 pages)
Specifications of SAM9G20
Flash (kbytes)
0 Kbytes
Pin Count
217
Max. Operating Frequency
400 MHz
Cpu
ARM926
Hardware Qtouch Acquisition
No
Max I/o Pins
96
Ext Interrupts
96
Usb Transceiver
3
Usb Speed
Full Speed
Usb Interface
Host, Device
Spi
2
Twi (i2c)
1
Uart
7
Ssc
1
Ethernet
1
Sd / Emmc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
Yes
Adc Channels
4
Adc Resolution (bits)
10
Adc Speed (ksps)
95
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
32
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)
0.9 to 1.1
Fpu
No
Mpu / Mmu
No/Yes
Timers
6
Output Compare Channels
6
Input Capture Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
No
- SAM9261 PDF datasheet
- SAM9261 PDF datasheet #2
- SAM9261 PDF datasheet #3
- SAM9G20 PDF datasheet #4
- SAM9G20 PDF datasheet #5
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- Download datasheet (13Mb)
41.9.2
780
AT91SAM9G20
Write Timings
Table 41-27. SMC Read Signals - NCS Controlled (READ_MODE= 0) (Continued)
Table 41-28. SMC Write Signals - NWE controlled (WRITE_MODE = 1)
Note:
SMC
SMC
SMC
SMC
SMC
Symbol
SMC
SMC
SMC
SMC
SMC
SMC
SMC
10
11
12
13
14
15
16
17
18
19
20
21
1. hold length = total cycle duration - setup duration - pulse duration. “hold length” is for “ncs wr
hold length” or “NWE hold length”.
Parameter
Data Out Valid before NWE High
NWE Pulse Width
NBS0/A0 NBS1, NBS2/A1, NBS3, A2
- A25 valid before NWE low
NCS low before NWE high
NWE High to Data OUT, NBS0/A0
NBS1, NBS2/A1, NBS3, A2 - A25
change
NWE High to NCS Inactive
NWE High to Data OUT, NBS0/A0
NBS1, NBS2/A1, NBS3, A2 - A25,
NCS change
Data Setup before NCS High
Data Hold after NCS High
A2 - A25 valid before NCS High
NRD low before NCS High
NCS Pulse Width
NBS0/A0, NBS1, NBS2/A1, NBS3,
HOLD or NO HOLD SETTINGS (ncs rd hold ≠ 0, ncs rd hold = 0)
HOLD or NO HOLD SETTINGS (nwe hold ≠ 0, nwe hold = 0)
(1)
NO HOLD SETTINGS (nwe hold = 0)
HOLD SETTINGS (ncs rd hold ≠ 0)
HOLD SETTINGS (nwe hold ≠ 0)
(1)
nwe hold * t
wr hold)* t
(nwe setup - ncs
length * t
pulse) * t
(nwe hold - ncs
(ncs rd setup +
(ncs rd setup +
rd setup + nwe
ncs rd pulse)*
ncs rd pulse -
1.8V Supply
ncs rd pulse
nwe pulse *
nwe pulse *
nwe setup *
nrd setup)*
t
t
t
t
t
CPMCK
CPMCK
CPMCK
CPMCK
CPMCK
-0.4
0.2
0.3
3.4
9.2
0.1
0
CPMCK
CPMCK
-0.8
-0.4
-0.5
CPMCK
-0.8
-0.2
CPMCK
+
-
Min
-
length * t
(nwe setup - ncs
(ncs rd setup +
(ncs rd setup +
pulse) * t
wr hold)* t
(nwe hold - ncs
ncs rd pulse)*
ncs rd pulse -
rd setup + nwe
ncs rd pulse
3.3V Supply
nrd setup)*
t
t
nwe pulse *
nwe pulse *
nwe setup *
t
t
t
t
CPMCK
CPMCK
nwe hold *
CPMCK
CPMCK
CPMCK
CPMCK
7.6
0.1
-0.3
0.2
3.1
0
6384E–ATARM–05-Feb-10
CPMCK
-0.6
-0.3
CPMCK
-0.8
-0.4
-0.5
-0.4
CPMCK
-
-
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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