SAM7X128 Atmel Corporation, SAM7X128 Datasheet - Page 122

• 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 20-4.
20.2.4.2
122
Step
1
2
3
4
5
6
SAM7X512/256/128
Programmer Action
Sets MODE and DATA signals
Clears NCMD signal
Waits for RDY low
Releases MODE and DATA signals
Sets NCMD signal
Waits for RDY high
Read Handshaking
Write Handshake
Figure 20-2. Parallel Programming Timing, Write Sequence
For details on the read handshaking sequence, refer to
Figure 20-3.
MODE[3:0]
DATA[15:0]
MODE[3:0]
DATA[15:0]
NVALID
NVALID
NCMD
NCMD
Parallel Programming Timing, Read Sequence
NOE
RDY
NOE
RDY
1
1
Waits for NCMD low
Latches MODE and DATA
Clears RDY signal
Executes command and polls NCMD high
Executes command and polls NCMD high
Sets RDY
Device Action
2
2
Adress IN
ADDR
3
3
4
5
Z
6
Figure 20-3
4
7
Data OUT
8
5
9
and
Data I/O
Input
Input
Input
Input
Input
Input
10
11
Table
X
12
6120I–ATARM–06-Apr-11
20-5.
13
IN