参数资料
型号: ATICE10
厂商: Atmel
文件页数: 24/35页
文件大小: 0K
描述: AVR IN CIRCUIT EMULATOR
标准包装: 1
AT90ADCPOD Configuration
Table 4-3. Settings of PW2, PW1 and PW0
Targe V CC
2.7 - 2.9V
3.0 - 3.3V
3.4 - 3.7V
3.8 - 4.1V
4.2 - 4.5V
4.6 - 4.8V
4.9 - 5.1V
5.2 - 5.5V
PW2
(ON)
(ON)
(ON)
(ON)
(OFF)
(OFF)
(OFF)
(OFF)
PW1
(ON)
(ON)
(OFF)
(OFF)
(ON)
(ON)
(OFF)
(OFF)
PW0
(ON)
(OFF)
(ON)
(OFF)
(ON)
(OFF)
(ON)
(OFF)
4.4
4-4
The ICE10 Clock
System
The AVR ICE10 system can use one of three available clock sources:
Internal programmable clock in the ICE10
Crystal from the user application
External oscillator from the user application
The internal clock can be adjusted between 400 kHz and 20 MHz. Any frequency within
this range can be selected, and will be produced with an accuracy better than 200 PPM
for most frequencies.
If an external clock source from the user application is used this can be in the range of
32.768 kHz to 10 MHz. To use an external clock source, select External Oscillator in the
Emulator Options menu in AVR Studio. It is important to tune the oscillator driver by
choosing the corresponding range in the Clock Range menu to make the clock system
work properly with an external crystal.
On the pod card, the XTAL pins are connected to the ICE10 by using the 2-wire cable.
Connect the cable from J103 to the 2-pin header nearest the used probe connector.
Table 4-4 shows where to connect the 2-wire for various devices.
Table 4-4. Connections of 2-wire Cable
Device
2-wire Cable
S1200 and S2313
Connect J103 and J305
S4414 and S8515
Connect J103 and J306
ATtiny11, ATtiny12, ATtiny22, S2323, and S2343
Connect J103 and J307
S4434 and S8535
Connect J103 and J308
ATtiny28, S4433, and S2333
Connect J103 and J309
Pin 1 on each connector is labeled with *.
Connector J101 must be left open if the clock source from the user application is a crys-
tal, If the clock source from the user application is an oscillator, a jumper must be
mounted on connector J101. Table 4-5 shows the settings for J101. The switch S101
must be in position OFF in both cases.
AVR ? ATICE10 User Guide
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