SAM7SE512 Atmel Corporation, SAM7SE512 Datasheet - Page 187
SAM7SE512
Manufacturer Part Number
SAM7SE512
Description
Manufacturer
Atmel Corporation
Specifications of SAM7SE512
Flash (kbytes)
512 Kbytes
Pin Count
144
Max. Operating Frequency
48 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
88
Ext Interrupts
88
Usb Transceiver
1
Usb Speed
Full Speed
Usb Interface
Device
Spi
1
Twi (i2c)
1
Uart
3
Ssc
1
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
384
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)
3.0 to 3.6
Fpu
No
Mpu / Mmu
Yes / No
Timers
3
Output Compare Channels
3
Input Capture Channels
3
Pwm Channels
4
32khz Rtc
Yes
Calibrated Rc Oscillator
No
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Figure 22-37. Read Access in Standard Protocol using NWAIT
Note:
22.6.7.4
6222F–ATARM–14-Jan-11
synchronized
NWR0/NWE
NWR1/NUB
internally
A0/NLB
NWAIT
NWAIT
D[15:0]
A[22:1]
MCK
NRD
NCS
1. Read access, memory data bus width = 16, NWS = 5, WSEN = 1
Memory Access Example Waveforms
Figure 22-38 on page 188
write accesses to the various associated external memory devices. The configurations
described are shown in
Table 22-3.
Wait Delay Falling from NRD/NOE
0002C44
Figure Number
Figure 22-38
Figure 22-39
Figure 22-40
Figure 22-41
Figure 22-42
Figure 22-43
Figure 22-44
0003
Memory Access Waveforms
Table
through
Number of Wait
22-3.
States
Figure 22-44 on page 194
0
1
1
0
1
1
0
(1)
Bus Width
16
16
16
16
SAM7SE512/256/32
8
8
8
show the waveforms for read and
Size of Data Transfer
Half-word
Half-word
Word
Word
Word
Byte
Byte
187
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