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22 RabbitCore RCM3200
4.2 Serial Communication
The RCM3200 board does not have an RS-232 or an RS-485 transceiver directly on the
board. However, an RS-232 or RS-485 interface may be incorporated on the board the
RCM3200 is mounted on. For example, the Prototyping Board has a standard RS-232
transceiver chip.
4.2.1 Serial Ports
There are six serial ports designated as Serial Ports A, B, C, D, E, and F. All six serial
ports can operate in an asynchronous mode up to the baud rate of the system clock divided
by 8. An asynchronous port can handle 7 or 8 data bits. A 9th bit address scheme, where
an additional bit is sent to mark the first byte of a message, is also supported. Serial Ports
A, B, C, and D can also be operated in the clocked serial mode. In this mode, a clock line
synchronously clocks the data in or out. Either of the two communicating devices can sup-
ply the clock.
When the Rabbit 3000 provides the clock, the baud rate can be up to 80% of
the system clock frequency divided by 128, or 276,250 bps for a 44.2 MHz clock speed.
Serial Ports E and F can also be configured as SDLC/HDLC serial ports. The IrDA proto-
col is also supported in SDLC format by these two ports.
Serial Port A is available only on the programming port.
4.2.2 Ethernet Port
Figure 7 shows the pinout for the RJ-45 Ethernet port (J4). Note that some Ethernet con-
nectors are numbered in reverse to the order used here.
Figure 7. RJ-45 Ethernet Port Pinout
ETHERNET
RJ-45 Plug
1. E_Tx+
2. E_Tx
3. E_Rx+
6. E_Rx
1
8
RJ-45 Jack
- RabbitCore RCM3200 1
- Rabbit Semiconductor Inc 2
- Trademarks 2
- TABLE OF CONTENTS 3
- Appendix D. Power Supply 103 5
- Notice to Users 115 5
- Index 117 5
- Schematics 121 5
- 1. INTRODUCTION 7
- Table 1. RCM3200 Features 8
- User’s Manual 3 9
- 1.4 How to Use This Manual 10
- 2. HARDWARE SETUP 11
- Do not press down 12
- PC COM port 13
- 8 RabbitCore RCM3200 14
- 2.3 Run a Sample Program 15
- 2.4 Where Do I Go From Here? 16
- 3. RUNNING SAMPLE PROGRAMS 17
- 3.2 Sample Programs 18
- User’s Manual 13 19
- 14 RabbitCore RCM3200 20
- 4. HARDWARE REFERENCE 21
- Headers J1 and J2 are 22
- Backup Battery 23
- 18 RabbitCore RCM3200 24
- User’s Manual 19 25
- 20 RabbitCore RCM3200 26
- User’s Manual 21 27
- 4.2 Serial Communication 28
- DIAG connector on 29
- LNK), one to 29
- ACT), and one to indicate 29
- 4.3 Serial Programming Cable 30
- 26 RabbitCore RCM3200 32
- 4.4 Other Hardware 33
- 4.5 Memory 34
- 5. SOFTWARE REFERENCE 35
- 30 RabbitCore RCM3200 36
- 5.2 Dynamic C Function Calls 37
- RS232.LIB 38
- PACKET.LIB 38
- User’s Manual 33 39
- RETURN VALUE 39
- 5.3 Upgrading Dynamic C 40
- 6. USING THE TCP/IP FEATURES 41
- 36 RabbitCore RCM3200 42
- User’s Manual 37 43
- 38 RabbitCore RCM3200 44
- User’s Manual 39 45
- 40 RabbitCore RCM3200 46
- User’s Manual 41 47
- 42 RabbitCore RCM3200 48
- User’s Manual 43 49
- User’s Manual 45 51
- 46 RabbitCore RCM3200 52
- 6.7 Where Do I Go From Here? 53
- 48 RabbitCore RCM3200 54
- User’s Manual 49 55
- Please refer to the RCM3200 56
- Exclusion 57
- 52 RabbitCore RCM3200 58
- User’s Manual 53 59
- A.2 Bus Loading 60
- I/O read and write cycles 61
- 56 RabbitCore RCM3200 62
- = –55°C to +125°C, V 63
- = 3.0 V to 3.6 V 63
- 58 RabbitCore RCM3200 64
- A.5 Conformal Coating 65
- A.6 Jumper Configurations 66
- PPENDIX B. PROTOTYPING BOARD 67
- B.1 Introduction 68
- User’s Manual 63 69
- 64 RabbitCore RCM3200 70
- User’s Manual 65 71
- B.3 Power Supply 72
- User’s Manual 67 73
- MEASUREMENT 74
- Connector Pinout 75
- Prototyping Board 76
- User’s Manual 71 77
- 72 RabbitCore RCM3200 78
- PPENDIX C. LCD/KEYPAD MODULE 79
- 74 RabbitCore RCM3200 80
- Contrast 81
- Adjustment 81
- C.3 Keypad Labeling 82
- C.4 Header Pinouts 83
- 78 RabbitCore RCM3200 84
- User’s Manual 79 85
- Bezel/Gasket 86
- User’s Manual 81 87
- C.7.3 LCD Display 89
- STDIO string functions 95
- C.7.4 Keypad 104
- library 104
- C.8 Sample Programs 107
- 102 RabbitCore RCM3200 108
- APPENDIX D. POWER SUPPLY 109
- 165 mA·h 110
- D.2 Optional +5 V Output 110
- E.1 Overview 111
- E.2 Header J6 112
- E.3 Using Parallel Port F 113
- 108 RabbitCore RCM3200 114
- Bits Value Description 115
- Table E-3. PWM Outputs 116
- E.5 PWM Registers 117
- E.6 Quadrature Decoder 118
- Rejected 118
- Accepted 118
- Peri Clock 118
- Timer A10 118
- User’s Manual 113 119
- 114 RabbitCore RCM3200 120
- NOTICE TO USERS 121
- 116 RabbitCore RCM3200 122
- User’s Manual 117 123
- 118 RabbitCore RCM3200 124
- User’s Manual 119 125
- 120 RabbitCore RCM3200 126
- SCHEMATICS 127
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