20-101-1306 Rabbit Semiconductor, 20-101-1306 Datasheet - Page 87

• Manufacturer Part Number: 20-101-1306
• Description: CORE MODULE RCM5750
• Manufacturer: Rabbit Semiconductor
• Type: Serial to Ethernetr

Specifications of 20-101-1306

• Module/board Type: MPU Core Module
• Number Of I/os: 32
• Ethernet Connection Type: 10/100 Base-T
• Memory Type: Flash
• Operating Voltage: 3.3 V
• Operating Current: 70 mA
• Operating Temperature Range: - 40 C to + 85 C
• Board Size: 30 mm x 51 mm x 3 mm
• Product: Modules
• For Use With/related Products: RCM5750
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 316-1183

E.3.1 Configuration
Serial Ports C and D are brought out as 3-wire RS-232 serial ports on headers J4 and J3 respec-
tively. Jumpers may be installed on header JP7 to use header J3 as a 5-wire RS-232 serial port
with flow control provided by Serial Port C.
Jumpers on headers JP5 connect the MiniCore signals to the RS-232 transceiver. Jumpers may be
installed on header JP7 to use header J3 as a 5-wire RS-232 serial port with flow control provided
by Serial Port C. Note that Serial Port C does not support flow control using serial DMA, so the
following macro must be used with flow control via Serial Port C on the Serial Communication
accessory board.
The jumpers at header JP5 connect the Serial Port D and Serial Port C signals to the RS-232 trans-
ceiver. These jumpers may be removed so that other MiniCore serial port signals may be con-
nected via JP6 to the RS-232 transceiver.
MiniCore RCM5700/RCM6700 User’s Manual
Table E-2. Serial Communication Accessory Board RS-232 Connection Options
#define SER_DMA_DISABLE
MiniCore
Default
NOTE: Headers J1, J5, J6, and the associated circuits and configuration headers are not stuffed.
Signal
* Configured via header JP7.
† Configured via header JP10 (unstuffed).
‡ Termination and bias resistors enabled via header JP13 (unstuffed).
PD0
PD1
PD2
PD3
PC0
PC1
PC2
PC3
PE6
PE7
PC4
PC5
Header
J3/J4
J5/J6
J1
—
J3
J5
‡
*
†
Serial Port D
Serial Port C
Serial Port B
Serial Port E
Flow Enable
Serial Port F
Serial Port
(RS-232)
(RS-232)
(RS-232)
(RS-232)
(RS-485)
rabbit.com
Header
JP11
JP5
JP8
Connected via
Pins
1–2
3–4
5–6
7–8
1–2
3–4
5–6
7–8
1–2
3–4
5–6
7–8
Alternate Connection
Header
JP12
JP6
JP9
Pin
1
2
3
4
1
2
3
4
1
2
3
4
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