45300 Parallax Inc, 45300 Datasheet - Page 156
![BOARD PROTO SX48](/photos/9/25/92507/mfg_45300_sml.jpg)
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
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15 Appendix E: SX Data Sheet
Special function and general-purpose register addresses $00 - $0F are ‘global’ in that they can always be
accessed regardless of the contents of the FSR. Special function register $07 (RC) is available as general
purpose RAM in 20-pin SX packages. Special function registers $08 (RD) and $09 (RE) are available as
general-purpose RAM in 20 and 28-pin SX packages.
15.2.10 Direct Addressing
Global registers can be directly accessed at any time but general-purpose registers can only be directly
accessed within the current bank. The global registers are numbered $01 through $0F. Figure 25 –
Global Register Addressing SX 20/28/48/52 (direct) shows how the Global Registers are addressed in
the SX20/28 and the SX48/52. Simply specify the desired global register address in the fr operand (the
register address operand) of instructions as shown below:
Page 156 SX-Key/Blitz Development System Manual 2.0 Parallax, Inc.
mov
*n is 7 on the SX20/28. n is 15 on the SX48/52
$01 - $0F
$00-
$01-
$02-
$0F-
Figure 25 - Global Register Addressing SX20/28/48/52 (direct)
$0F, #$55
Global
RTCC
IND
$0F
PC
$10-
$11-
$12-
$1F-
; move $55 to global register $0F
4
fr (5-bit address in instruction)
Bank 0
Register Selection Bits
$0
$1
$2
$F
3
Bank 1
2
$0
$1
$2
$F
—
—
Bank 2
1
$F
$0
$1
$2
0
———
Bank n*
$F
$0
$1
$2
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