Distributor of Digi International: Excellent Integrated System Limited
Datasheet of 101-1274 - KIT DEV STANDARD RCM5700
Contact us: [email protected] Website: www.integrated-circuit.com
MiniCore RCM5700/RCM6700 User’s Manual
digi.com
87
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.
#define SER_DMA_DISABLE
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.
Table E-2. Serial Communication Accessory Board RS-232 Connection Options
Default
MiniCore
Signal
Header
Serial Port
Connected via
Alternate Connection
Header
Pins
Header
Pin
PC0
J3
Serial Port D
(RS-232)
JP5
1–2
JP6
1
PC1
3–4
2
PC2
J3/J4
*
* Configured via header JP7.
Serial Port C
(RS-232)
5–6
3
PC3
7–8
4
PE6
J5
Serial Port E
(RS-232)
JP8
1–2
JP9
1
PE7
3–4
2
PC4
J5/J6
†
† Configured via header JP10 (unstuffed).
Serial Port B
(RS-232)
5–6
3
PC5
7–8
4
PD0
—
JP11
1–2
JP12
1
PD1
J1
‡
‡ Termination and bias resistors enabled via header JP13 (unstuffed).
Flow Enable
3–4
2
PD2
Serial Port F
(RS-485)
5–6
3
PD3
7–8
4
NOTE:
Headers J1, J5, J6, and the associated circuits and configuration headers are not stuffed.
88 / 113
88 / 113
