20-101-1093 Rabbit Semiconductor, 20-101-1093 Datasheet - Page 38
20-101-1093
Manufacturer Part Number
20-101-1093
Description
RCM4110 RABBITCORE
Manufacturer
Rabbit Semiconductor
Datasheet
1.20-101-1093.pdf
(112 pages)
Specifications of 20-101-1093
Module/board Type
MPU Core Module
Product
Microcontroller Modules
Core Processor
Rabbit 4000
Flash
512 KBytes
Operating Supply Voltage
3 to 3.6 V
Board Size
48 mm x 36 mm x 12 mm
Cpu Core
Rabbit 4000
For Use With/related Products
RCM4110
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Other names
316-1140
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- Download datasheet (2Mb)
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 RCM4100 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
RS232_NOCHARASSYINBRK
This macro is already defined so that it is the default behavior for the sample programs in
the Dynamic C
34
Serial Port A
Serial Port B
Serial Port C
Serial Port D
#define RS232_NOCHARASSYINBRK
SCLKA
SCLKD
SAMPLES\RCM4100\SERIAL
SCLKB
SCLKC
RS232.LIB
TXA
RXA
RXB
RXC
TXD
RXD
TXB
TXC
Table 3. Rabbit 4000 Serial Port and Clock Pins
PC6, PC7, PD6
PC7, PD7, PE7
PB1
PC4, PC5, PD4
PC5, PD5, PE5
PB0
PC2, PC3
PC3, PD3, PE3
PD2, PE2, PE7, PC7
PC0, PC1
PC1, PD1, PE1
PD0, PE0, PE3, PC3
to inhibit break-character assembly for all the serial ports.
library requires you to define the macro
RCLKE and RCLKF must be selected to be on the
same parallel port as TXE and TXF respectively.
Serial Port E
Serial Port F
folder.
RCLKE
TCLKE
RCLKF
TCLKF
RXE
TXE
TXF
RXF
RabbitCore RCM4100
PD6, PE6, PC6
PD7, PE7, PC7
PD5, PE5, PC5
PD4, PE4, PC4
PD2, PE2, PC2
PD3, PE3, PC3
PD1, PE1, PC1
PD0, PE0, PC0
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