101-1156 Rabbit Semiconductor, 101-1156 Datasheet - Page 42
![no-image](/images/no-image-200.jpg)
101-1156
Manufacturer Part Number
101-1156
Description
KIT DEVELOPMENT INT'L RCM4200
Manufacturer
Rabbit Semiconductor
Series
RabbitCore 4000r
Type
MPU Moduler
Specifications of 101-1156
Contents
RabbitCore Module, Dev. Board, AC Adapter, Cable and Dynamic C® CD-Rom
Processor To Be Evaluated
Rabbit 4000
Data Bus Width
8 bit
Interface Type
Ethernet
Silicon Manufacturer
Rabbit Semiconductor
Core Architecture
Rabbit 4000
Kit Contents
RCM4200 Module, Prototyping Board, AC Adapter, Cable, Dynamic C CD-ROM, Getting Started Instructions
For Use With/related Products
RCM4200
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
- Current page: 42 of 134
- 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 RCM4200 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
36
Serial Port A
(program-
ming port)
Serial Port B
(used by A/D
converter on
RCM4200)
Serial Port C
(shared by
serial flash)
#define RS232_NOCHARASSYINBRK
SCLKA
SAMPLES\RCM4200\SERIAL
SCLKB
SCLKC
RS232.LIB
TXA
RXA
RXB
RXC
TXB
TXC
Table 3. Rabbit 4000 Serial Port and Clock Pins
to inhibit break-character assembly for all the serial ports.
PC6, PC7, PD6
PC7, PD7, PE7
PB1
PC4, PC5, PD4
PC5, PD5, PE5
PB0
PC2, PC3
PC3, PD3, PE3
PD2, PE2, PE7, PC7
library requires you to define the macro
RCLKE must be selected to be on the same parallel
port as TXE.
Serial Port D
Serial Port E
(RCM4210
only)
folder.
SCLKD
RCLKE
TCLKE
TXD
RXD
RXE
TXE
RS232_
RabbitCore RCM4200
PC0, PC1
PC1, PD1, PE1
PD0, PE0, PE3, PC3
PD6, PC6, PE6
PD7, PC7, PE7
PD5, PC5, PE5
PD4, PC4, PE4
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