45181 Parallax Inc, 45181 Datasheet - Page 157
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: 157 of 184
- Download datasheet (2Mb)
General-purpose registers can only be accessed within one bank at a time. The general-purpose registers
are numbered $10 through $1F. The active bank is controlled by the upper 3 bits of the FSR (SX20/28) as
shown in Figure 26 – SX20/28 General Purpose Register Addressing (direct) or the upper 4 bits of the
FSR (SX48/52) as shown in Figure 27 – SX 48/52 General-Purpose Register Addressing (direct).
$00-
$01-
$02-
$0F-
Figure 26 - SX20/28 General Purpose Register Addressing (direct)
= 1
4
fr (5-bit address in instruction)
Global
RTCC
IND
$0F
PC
3
Register Selection Bits
2
Bank Selection Bits
7
$10-
$11-
$12-
$1F-
1
Bank 0
6
$0
$1
$2
$F
SX-Key/Blitz Development System Manual 2.0 Parallax, Inc. Page 157
0
5
Bank 1
$0
$1
$2
$F
—
—
15 Appendix E: SX Data Sheet
FSR ($04)
4
Bank 2
Ignored because fr.4 is 1
$10 - $1F
$F
$0
$1
$2
3
$00, $20, $40, $60, $80,
$A0, $C0, or $E0
———
2
Bank 7
1
$F
$0
$1
$2
0
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