AT32UC3L064 Atmel Corporation, AT32UC3L064 Datasheet - Page 503

• Manufacturer Part Number: AT32UC3L064
• Manufacturer: Atmel Corporation

Specifications of AT32UC3L064

• Flash (kbytes): 64 Kbytes
• Pin Count: 48
• Max. Operating Frequency: 50 MHz
• Cpu: 32-bit AVR
• # Of Touch Channels: 17
• Hardware Qtouch Acquisition: Yes
• Max I/o Pins: 36
• Ext Interrupts: 36
• Usb Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 2
• Uart: 4
• Lin: 4
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 12
• Adc Speed (ksps): 460
• Analog Comparators: 8
• Resistive Touch Screen: No
• Temp. Sensor: Yes
• Crypto Engine: No
• Sram (kbytes): 16
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: Yes
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 1.62 to 3.6
• Operating Voltage (vcc): 1.62 to 3.6
• Fpu: No
• Mpu / Mmu: Yes / No
• Timers: 6
• Output Compare Channels: 18
• Input Capture Channels: 12
• Pwm Channels: 35
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

22.9.3
Name:
Access Type:
Offset:
Reset Value:
• EXP: Clock Prescaler
• SUDAT: Data Setup Cycles
• TTOUT: SMBus T
• TLOWS: SMBus T
32099G–06/2011
31
23
15
7
Used to specify how to prescale the SMBus TLOWS counter. The counter is prescaled according to the following formula:
Non-prescaled clock cycles for data setup count. Used to time T
This timing is used for timing the ACK/NAK bits, and any data bits driven in slave transmitter mode.
Prescaled clock cycles used to time SMBus T
Prescaled clock cycles used to time SMBus T
Timing Register
TIMEOUT
LOW:SEXT
30
22
14
6
TR
Read/Write
0x08
0x00000000
Cycles
Cycles
EXP
29
21
13
5
TIMEOUT
LOW:SEXT
f
PRESCALED
28
20
12
4
.
TLOWS
.
SUDAT
TTOUT
=
f
------------------------ -
2
CLK_TWIS
(
EXP
SU_DAT
27
19
11
3
-
+
1
. Data is driven SUDAT cycles after TWCK low detected.
)
26
18
10
2
-
AT32UC3L016/32/64
25
17
9
1
-
24
16
8
0
-
503