SAM7X128 Atmel Corporation, SAM7X128 Datasheet - Page 623

• Manufacturer Part Number: SAM7X128
• Manufacturer: Atmel Corporation

Specifications of SAM7X128

• Flash (kbytes): 128 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 55 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 62
• Ext Interrupts: 62
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 2
• Twi (i2c): 1
• Uart: 3
• Can: 1
• Ssc: 1
• Ethernet: 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
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 3.3
• Operating Voltage (vcc): 3.0 to 3.6
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 3
• Output Compare Channels: 3
• Input Capture Channels: 3
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: No

Table 38-21. SPI Timings
Notes:
6120I–ATARM–06-Apr-11
Symbol
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
SPI
0
1
2
3
4
5
6
7
8
9
10
11
1. 3.3V domain: V
2. t
CPMCK
Parameter
MISO Setup time before SPCK rises (master)
MISO Hold time after SPCK rises (master)
SPCK rising to MOSI Delay (master)
MISO Setup time before SPCK falls (master)
MISO Hold time after SPCK falls (master)
SPCK falling to MOSI Delay (master)
SPCK falling to MISO Delay (slave)
MOSI Setup time before SPCK rises (slave)
MOSI Hold time after SPCK rises (slave)
SPCK rising to MISO Delay (slave)
MOSI Setup time before SPCK falls (slave)
MOSI Hold time after SPCK falls (slave)
: Master Clock period in ns.
VDDIO
Figure 38-7. SPI Slave mode with (CPOL = NCPHA = 0) or (CPOL= NCPHA= 1)
Note that in SPI master mode the ATSAM7X512/256/128 does not sample the data (MISO) on
the opposite edge where data clocks out (MOSI) but the same edge is used as shown in
38-4
SPCK
MISO
MOSI
from 3.0V to 3.6V, maximum external capacitor = 40 pF.
and
Figure
38-5.
SPI
9
3.3V domain
3.3V domain
3.3V domain
3.3V domain
3.3V domain
3.3V domain
3.3V domain
3.3V domain
3.3V domain
3.3V domain
3.3V domain
3.3V domain
Conditions
SPI
10
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
SPI
28.5 + (t
26.5 + (t
11
SAM7X512/256/128
Min
CPMCK
CPMCK
0
0
2
3
3
3
)/2
)/2
(2)
(2)
Max
28
28
2
2
Units
Figure
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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