45300 Parallax Inc, 45300 Datasheet - Page 176
45300
Manufacturer Part Number
45300
Description
BOARD PROTO SX48
Manufacturer
Parallax Inc
Type
MCUr
Specifications of 45300
Contents
Board
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
For Use With/related Products
SX48
For Use With
130-28029 - KIT PARTS SMART SENSORS45111 - MANUAL FOR SX-KEY/BLITZ VER. 2.028850 - CARRIER BOARD BOARD OF EDU USB
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
453001
Manufacturer:
LITTELFUSE/力特
Quantity:
20 000
Company:
Part Number:
453002
Manufacturer:
LITTELFU
Quantity:
1 000
- Current page: 176 of 184
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15 Appendix E: SX Data Sheet
In addition, the SX48/52 devices also allow interrupts on certain timer events, like overflow, compare
match, and input capture.
15.5.4 RB0-RB7 Interrupt
The SX offers eight sources of external interrupts; a change of state on any of RB0 – RB7 can generate an
interrupt. These can be individually configured via the WKEN_B and WKED_B configuration registers.
The latency, or response delay, will be five cycles in Turbo mode and ten cycles in Non-Turbo mode.
See “Wake-Up (Interrupt) on Edge Detect” in Chapter 10.2.5 for more information.
15.6 Peripherals
15.6.1 Oscillator Driver
The SX chips offer a configurable oscillator driver that supports five types of oscillators:
LP:
XT:
HS:
RC:
IRC:
An external clock source can also be used to drive the OSC1 pin (leaving the OSC2 pin disconnected) as
in Figure 39 – SX with External Clock.
15.6.1.1
In XT, LP, and HS modes, a crystal or ceramic resonator can be connected to the SX chip as in Figure 37
- SX with External Crystal or in Figure 38 - SX with External Ceramic Resonator. The SX oscillator
driver design requires the use of a parallel cut crystal. Use of a series cut crystal may give a frequency
out of the crystal manufacturer’s specifications. The values of the components can be determined from
Table 34 – External Component Selection for
have internal capacitors so that no external capacitors are required.
Page 176 SX-Key/Blitz Development System Manual 2.0 Parallax, Inc.
Low Power Oscillator
Crystal or Resonator
High Speed Crystal or Resonator
Resistor/Capacitor (external)
Resistor/Capacitor (internal)
LP, XT and HS Mode
Figure 37 - SX with External Crystal
C2
C1
XTL
Crystals
Rp
, below. Please note that some ceramic resonators
OSC1
OSC2
SX
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