101-1218 Rabbit Semiconductor, 101-1218 Datasheet - Page 41
![KIT APPLCTN RABBITCORE RCM4010](/photos/9/5/90537/101-1218_sml.jpg)
101-1218
Manufacturer Part Number
101-1218
Description
KIT APPLCTN RABBITCORE RCM4010
Manufacturer
Rabbit Semiconductor
Series
RabbitCore®r
Datasheet
1.20-101-1094.pdf
(130 pages)
Specifications of 101-1218
Main Purpose
*
Embedded
*
Utilized Ic / Part
RCM4010
Primary Attributes
*
Secondary Attributes
*
Processor To Be Evaluated
Rabbit 4000
Interface Type
Ethernet
Operating Supply Voltage
12 V
Lead Free Status / RoHS Status
Not applicable / Not applicable
Other names
316-1156
- Current page: 41 of 130
- Download datasheet (809Kb)
Table 3 summarizes the possible parallel port pins for the serial ports and their clocks.
4.2.1.1 Using the Serial Ports
The receive lines on the RCM4000 serial ports do not have pull-up resistors. If you are
using the serial ports without a receiver chip (for example, for RS-422, RS-232, or RS-485
serial communication), the absence of a pull-up resistor on the receive line will likely lead
to line breaks being generated since line breaks are normally generated whenever the
receive line is pulled low. If you are operating a serial port asynchronously, you can inhibit
character assembly during breaks by setting bit 1 in the corresponding Serial Port
Extended Register to 1. Should you need line breaks, you will have to either add a pull-up
resistor on your motherboard or use a receiver that incorporates the circuits to have the
output default to the nonbreak levels.
The Dynamic C
NOCHARASSYINBRK
This macro is already defined so that it is the default behavior for the sample programs in
the Dynamic C
User’s Manual
Serial Port A
Serial Port B
(RCM4010
only)
Serial Port C
RCLKF must be selected to be on the same parallel port as TXF.
#define RS232_NOCHARASSYINBRK
SCLKA
SCLKB
SCLKC
SAMPLES\RCM4000\SERIAL
RS232.LIB
RXA
TXA
TXB
RXB
TXC
RXC
Table 3. Rabbit 4000 Serial Port and Clock Pins
to inhibit break-character assembly for all the serial ports.
PC6, PC7
PC7, PE7
PB1
PC4, PC5
PC5, PE5
PB0
PC2, PC3
PC3, PE3
PE2, PE7, PC7
library requires you to define the macro
Serial Port D
Serial Port F
folder.
SCLKD
RCLKF
TCLKF
RXD
TXD
TXF
RXF
RS232_
PC0, PC1
PC1, PE1
PE0, PE3, PC3
PE2, PC2
PE3, PC3
PE1, PC1
PE0, PC0
35
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