SAM7S161 Atmel Corporation, SAM7S161 Datasheet - Page 209

• Manufacturer Part Number: SAM7S161
• Manufacturer: Atmel Corporation

Specifications of SAM7S161

• Flash (kbytes): 16 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 55 MHz
• Cpu: ARM7TDMI
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 32
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Twi (i2c): 1
• Uart: 3
• 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): 4
• Self Program Memory: NO
• 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): 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

25.9.10
Register Name:
Access Type:
• CSS: Master Clock Selection
• PRES: Processor Clock Prescaler
6175L–ATARM–28-Jul-11
31
23
15
–
–
–
7
–
PMC Master Clock Register
0
0
0
0
1
1
1
1
0
0
1
1
30
22
14
PMC_MCKR
Read-write
–
–
–
6
–
29
21
13
–
–
–
5
–
CSS
PRES
0
0
1
1
0
0
1
1
28
20
12
–
–
–
4
0
1
0
1
PRES
27
19
11
–
–
–
3
0
1
0
1
0
1
0
1
Clock Source Selection
Slow Clock is selected
Main Clock is selected
Reserved
PLL Clock is selected.
26
18
10
–
–
–
2
Processor Clock
Selected clock
Selected clock divided by 2
Selected clock divided by 4
Selected clock divided by 8
Selected clock divided by 16
Selected clock divided by 32
Selected clock divided by 64
Reserved
SAM7S Series
25
17
–
–
–
9
1
CSS
24
16
–
–
–
8
0
209