45181 Parallax Inc, 45181 Datasheet - Page 158
45181
Manufacturer Part Number
45181
Description
SX TECH TOOL KIT NO POWER
Manufacturer
Parallax Inc
Series
SXr
Type
Microcontrollerr
Datasheet
1.45180.pdf
(184 pages)
Specifications of 45181
Contents
SX Book, SX Key, SX Tech Board, Samples, Resonators, Cable and Manual
Product
Microcontroller Basic Stamps
Operating Supply Voltage
5 V
For Use With/related Products
SX MCUs
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 158 of 184
- Download datasheet (2Mb)
15 Appendix E: SX Data Sheet
To ensure you are writing to the desired register you must first write the correct value to the FSR to
select the proper bank. Table 31 – Bank Addresses and FSR Values and the code fragments will show
you how to directly access the banked registers on the SX20/28 and SX48/52.
Page 158 SX-Key/Blitz Development System Manual 2.0 Parallax, Inc.
$00-
$01-
$02-
$0F-
Figure 27 - SX48/52 General-Purpose Register addressing (direct)
= 1
4
fr (5-bit address in instruction)
Global
RTCC
IND
$0F
PC
3
Register Selection Bits
2
7
$10-
$11-
$12-
$1F-
Bank Selection Bits
1
Bank 0
6
$0
$1
$2
$F
0
5
Bank 1
$0
$1
$2
$F
—
—
FSR ($04)
4
Bank 2
$10 - $1F
$F
$0
$1
$2
3
Ignored because fr.4 is 1
$00 - $F0
———
2
Bank 15
1
$F
$0
$1
$2
0
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