SAM7X256 Atmel Corporation, SAM7X256 Datasheet - Page 624

• Manufacturer Part Number: SAM7X256
• Manufacturer: Atmel Corporation

Specifications of SAM7X256

• Flash (kbytes): 256 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): 64
• 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

38.8.4
Table 38-22. EMAC Signals
Notes:
Table 38-23. EMAC MII Specific Signals
Note:
624
Symbol
EMAC
EMAC
EMAC
Symbol
EMAC
EMAC
EMAC
EMAC
EMAC
EMAC
EMAC
EMAC
EMAC
EMAC
EMAC
EMAC
EMAC
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
1. f: MCK frequency (MHz)
2. V
1. V
SAM7X512/256/128
EMAC Characteristics
VDDIO
VDDIO
Parameter
Setup for EMDIO from EMDC rising
Hold for EMDIO from EMDC rising
EMDIO toggling from EMDC falling
Parameter
Setup for ECOL from ETXCK rising
Hold for ECOL from ETXCK rising
Setup for ECRS from ETXCK rising
Hold for ECRS from ETXCK rising
ETXER toggling from ETXCK rising
ETXEN toggling from ETXCK rising
ETX toggling from ETXCK rising
Setup for ERX from ERXCK
Hold for ERX from ERXCK
Setup for ERXER from ERXCK
Hold for ERXER from ERXCK
Setup for ERXDV from ERXCK
Hold for ERXDV from ERXCK
from 3.0V to 3.6V, maximum external capacitor = 20 pF
from 3.0V to 3.6V, maximum external capacitor = 20 pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Load: 20pF
Conditions
Conditions
(2)
(2)
(2)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
(1)
((1/f)-19) + 4
Min (ns)
Min (ns)
1.5
2
0
2
2
0
4
0
4
2
2
(1)
6120I–ATARM–06-Apr-11
Max (ns)
Max (ns)
4.5
25
25
25