101-0402 Rabbit Semiconductor, 101-0402 Datasheet - Page 48

• Manufacturer Part Number: 101-0402
• Description: KIT DEV TCP/IP 2000 INTL
• Manufacturer: Rabbit Semiconductor
• Series: RabbitCore 2000r
• Type: MPU Moduler

Specifications of 101-0402

• Contents: RabbitCore Module, Dev. Board, Cable and Dynamic C® CD-Rom
• For Use With/related Products: RCM2000, RCM2010, RCM2020
• Lead Free Status / RoHS Status: Vendor undefined / Vendor undefined

5.1 Serial Communication
In the factory-default configuration, the TCP/IP Development Board has one RS-232 (3-wire)
serial channel, one RS-485 serial channel, and one synchronous CMOS serial channel. The
TCP/IP Development Board may be configured for 5-wire RS-232 or two 3-wire RS-232
channels. The exact configuration instructions depend on the version of the TCP/IP Devel-
opment Board you have. This information is etched on the bottom side of the printed cir-
cuit board, or you can readily determine your version by examining the diagrams below to
find the one that matches your board.
Version 175-0188 Rev. A & B
The RS-232 transceiver may be used as a 5-wire RS-232 channel or as two 3-wire RS-232
channels at the expense of the RS-485 channel by adding 0
R61 and R62 as shown in Figure 7(a). The RS-485 chip (U10) and the associated bias and
termination resistors (R58, R59, and R60) shown in Figure 7 must be removed when con-
figuring the TCP/IP Development Board for either one 5-wire RS-232 or two 3-wire RS-232.
Table 2(a) summarizes the options. Note that the parameters in the
function call must also be set to match the hardware configuration being used.
44
Table 2(a). Serial Communication Configurations (Version 175-0188 Rev. A & B)
R58–R60
R61–R62
U10
J7-3 & J5-3
J7-4 & J5-4
J7-6
J7-7
Item
Figure 7(a). RS-232/RS-485 Serial Communication Options
Factory
Default
In
Out
In
RS-485+
RS-485–
TxC
RxC
One 3-wire RS-232
& RS-485
Two 3-wire RS-232 One 5-wire RS-232
Out
In
Out
TxB
RxB
TxC
RxC
surface-mounted resistors at
TCP/IP Development Kit
serMode
Out
In
Out
TxB
RxB
RTS
CTS
W
W
W
W
W
software