SAM7L128 Atmel Corporation, SAM7L128 Datasheet - Page 67
SAM7L128
Manufacturer Part Number
SAM7L128
Description
Manufacturer
Atmel Corporation
Specifications of SAM7L128
Flash (kbytes)
128 Kbytes
Pin Count
144
Max. Operating Frequency
36 MHz
Cpu
ARM7TDMI
Hardware Qtouch Acquisition
No
Max I/o Pins
80
Ext Interrupts
80
Usb Speed
No
Usb Interface
No
Spi
1
Twi (i2c)
1
Uart
3
Segment Lcd
40
Graphic Lcd
No
Video Decoder
No
Camera Interface
No
Adc Channels
4
Adc Resolution (bits)
10
Adc Speed (ksps)
460
Resistive Touch Screen
No
Temp. Sensor
No
Crypto Engine
No
Sram (kbytes)
6
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 85
I/o Supply Class
1.8/3.3
Operating Voltage (vcc)
1.8 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
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13.4.2
Name:
Access Type:
• URSTS: User Reset Status
0 = No high-to-low edge on NRST happened since the last read of RSTC_SR.
1 = At least one high-to-low transition of NRST has been detected since the last read of RSTC_SR.
• RSTTYP: Reset Type
Reports the cause of the last processor reset. Reading this RSTC_SR does not reset this field.
• NRSTL: NRST Pin Level
Registers the NRST Pin Level at Master Clock (MCK).
• SRCMP: Software Reset Command in Progress
0 = No software command is being performed by the reset controller. The reset controller is ready for a software command.
1 = A software reset command is being performed by the reset controller. The reset controller is busy.
6257A–ATARM–20-Feb-08
0
0
0
0
1
31
23
15
–
–
–
7
–
RSTTYP
Reset Controller Status Register
0
0
1
1
0
0
1
0
1
0
30
22
14
RSTC_SR
Read-only
–
–
–
6
–
Reset Type
General Reset
Backup Reset
Watchdog Reset
Software Reset
User Reset
29
21
13
–
–
–
5
–
28
20
12
–
–
–
4
–
Comments
First power-up Reset (Power-on Reset or NRSTB asserted)
Return from Backup mode
Watchdog fault occurred
Processor reset required by the software
NRST pin detected low
AT91SAM7L128/64 Preliminary
27
19
11
–
–
–
3
–
26
18
10
–
–
2
–
RSTTYP
SRCMP
25
17
–
9
1
–
URSTS
NRSTL
24
16
–
8
0
67
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