45205 Parallax Inc, 45205 Datasheet - Page 49
![SX TECH BOARD](/photos/28/95/289537/45205-l_sml.jpg)
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
- Current page: 49 of 184
- Download datasheet (2Mb)
* Any of these OSC settings may be used when an external clock source is connected to OSC1.
** Many instructions are adversely affected by the carry flag when CARRYX is specified. See Appendix B (Chapter 1) and
SX18/SX18AC/PINS18
SX20/SX20AC/PINS20
SX28/SX28AC/PINS28
BANKS1
BANKS2
BANKS4
BANKS8
OSCHS3
OSCHS2
OSCHS1
OSCXT2
OSCXT1
OSCLP2
OSCLP1
OSCRC
OSC4MHZ
OSC1MHZ
OSC128KHZ
OSC32KHZ
IFBD
IRC_CAL
BOR42
BOR26
BOR22
BOROFF
TURBO
OPTIONX or
STACKX
CARRYX
SYNC
WATCHDOG
PROTECT
Setting
Appendix C (Chapter 0) for more information.
Description
Specifies the device type
1 page, 1 bank
2 pages, 1 bank
4 pages, 4 banks
4 pages, 8 banks
High speed crystal/res., 1MHz…75MHz *
High speed crystal/res., 1MHz…50MHz *
High speed crystal/res., 1MHz…50MHz *
Normal crystal/res., 1MHz…24MHz *
Normal crystal/res., 32kHz…10MHz *
Low power crystal/res., 32kHz…1MHz *
Low power crystal/resonator, 32kHz *
External RC circuit
Specifies internal oscillator @ 4MHz
Specifies internal oscillator @ 1 MHz
Specifies internal oscillator @ 128 kHz
Specifies internal oscillator @ 32 kHz
Disables the internal feedback resistor, i.e.
an external feedback resistor is required
between the OSC1 and OSC2 pins
Specifies the calibration value for the
internal RC oscillator, options are
IRC_SLOW, IRC_4MHZ and IRC_FAST
Brownout to trigger at < 4.2 volts
Brownout to trigger at < 2.6 volts
Brownout to trigger at < 2.2 volts
Disable Brownout reset
Specifies turbo mode (1:1 execution)
Option register is extended to 8 bits,
Stack is extended to 8 levels
ADD and SUB instructions use Carry flag as input**
Enable input syncing
Enable the watchdog timer
Enable code protection
Table 6 - SX20/28 DEVICE Settings
SX20, SX28 DEVICE Settings
SX-Key/Blitz Development System Manual 2.0 Parallax, Inc. Page 49
7 The SASM Assembler
Default
SX18
BANKS8
OSCRC
4 MHz
internal feedback
resistor enabled
IRC_SLOW
BOROFF
Turbo off
Option 6 bits
Stack 2 levels
Carry flag ignored
disabled
disabled
disabled
(1:4 execution)
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