45300 Parallax Inc, 45300 Datasheet - Page 167
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
- Current page: 167 of 184
- Download datasheet (2Mb)
stack and the special shadow registers for W, STATUS, and the FSR, which were preserved during
interrupt handling. RETIW behaves the same as RETI but also compensates the RTCC by adding the
value in W to the RTCC.
15.3 Port Configuration Registers
15.3.1 Port A Registers
There are three registers used to configure the I/O pins of Port A. The TRIS_A register configures the
data direction of the Port A pins as input or output. The LVL_A register configures the input pins as
TTL or CMOS voltage level. The PLP_A register enables/disables pull up resistors on Port A input pins.
To access these registers you must first write a particular value to the MODE register. Please refer
to
following Port A Registers. Note: All the bits in the following registers are set to ‘1’ on power up.
15.3.1.1
A bit set to ‘1’ in this register sets the corresponding I/O port pin to input (high z) mode.
A bit set to ‘0’ in this register sets the corresponding I/O port pin to output mode.
15.3.1.2
A bit set to ‘1’ in this register sets the input level of the corresponding port pin to TTL.
A bit set to ‘0’ in this register sets the input level of the corresponding port pin to CMOS.
15.3.1.3
A bit set to ‘1’ in this register disables the weak pull-up resistor on the corresponding port pin. A bit set
to ‘0’ in this register enables the weak pull-up resistor on the corresponding port pin.
Table
32 – SX20/28 Mode Register to find the values required in the MODE register to access the
TRIS_A – Data Direction Register
LVL_A - TTL/CMOS Select Register
PLP_A – Pull-Up Resistor Enable Register
7
7
7
-
-
-
6
6
6
-
-
-
5
5
5
-
-
-
SX-Key/Blitz Development System Manual 2.0 Parallax, Inc. Page 167
TRIS_A
4
4
4
LVL_A
PLP_A
-
-
-
RA3 RA2 RA1 RA0
RA3 RA2 RA1 RA0
RA3 RA2 RA1 RA0
3
3
3
15 Appendix E: SX Data Sheet
2
2
2
1
1
1
0
0
0
Related parts for 45300
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Microcontroller Modules & Accessories DISCONTINUED BY PARALLAX
Manufacturer:
Parallax Inc
Part Number:
Description:
BOOK UNDERSTANDING SIGNALS
Manufacturer:
Parallax Inc
Datasheet:
Part Number:
Description:
COMPETITION RING FOR SUMOBOT
Manufacturer:
Parallax Inc
Datasheet:
Part Number:
Description:
TEXT INFRARED REMOTE FOR BOE-BOT
Manufacturer:
Parallax Inc
Datasheet:
Part Number:
Description:
BOARD EXPERIMENT+LCD NX-1000
Manufacturer:
Parallax Inc
Datasheet:
Part Number:
Description:
CONTROLLER 16SERVO MOTOR CONTROL
Manufacturer:
Parallax Inc
Datasheet:
Part Number:
Description:
BASIC STAMP LOGIC ANALYZER
Manufacturer:
Parallax Inc
Datasheet:
Part Number:
Description:
IC MCU 2K FLASH 50MHZ SO-18
Manufacturer:
Parallax Inc
Datasheet: