45205 Parallax Inc, 45205 Datasheet - Page 56
45205
Manufacturer Part Number
45205
Description
SX TECH BOARD
Manufacturer
Parallax Inc
Type
MCUr
Datasheet
1.45180.pdf
(184 pages)
Specifications of 45205
Contents
Board
For Use With/related Products
SX MCUs
For Use With
28825 - MINI SOUND PLAYER SOUNDPAL130-28029 - KIT PARTS SMART SENSORS
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
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7 The SASM Assembler
7.3.15 The IRC_CAL Directive
This directive specifies the calibration value for the internal RC oscillator.
The syntax for the IRC_CAL directive is
IRC_CAL
IRC_SLOW | IRC_4MHZ | IRC_FAST
When the options IRC_SLOW or IRC_FAST are specified, the IRCTRIM bits in the FUSEX device
configuration register are programmed to the minimum or maximum frequency value. When the option
IRC_4MHZ is specified, the SX-Key software performs a calibration procedure whenever a program is
downloaded to the SX chip and adjusts the IRCTRIM bits so that the internally generated clock
frequency comes close as possible to 4 MHz.
If you don’t intend to use the internal RC oscillator, you should include an IRC_CAL IRC_SLOW or
IRC_CAL IRC_FAST directive in your program code in order to de-activate the calibration process,
which takes some extra time during downloading code to the SX device.
7.3.16 The LIST Directive
The LIST directive accepts various parameters to control the format of the list file and other assembler
option.
The various syntax forms of the LIST directive are:
Page 56 SX-Key/Blitz Development System Manual 2.0 Parallax, Inc.
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