SEPTENTRIO AsteRx-m3, Руководство пользователя

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21
21
Robotics Interface Board
21
3.3 44-pin Header
Connector type: SAMTEC TMM-122-03-S-D, 2-mm pitch.
Conventions
•
Pin Type: I=Input, O=Output, P=Power, Gnd=ground
•
LVTTL=3V3 Low Voltage TTL: VI
L
≤ 0.8V, VI
H
≥ 2.0V, VO
L
≤ 0.4V, VO
H
≥ 2.4V.
•
PU: internally pulled up
•
PD: internally pulled down
•
K: keeper input type
Pin numbering convention:
Pin# Name Type Level Description Comment
1 GND Gnd 0 Ground connection
2 LOGLED O LVTTL Logging LED output, 10mA max current See Appendix A
3 Reserved
4 GPLED O LVTTL GPLED output, 10mA max current See Appendix A
5 Reserved
6 GP2 O LVTTL General purpose output. GP2 in setGPIOFunctionality command.
7 5V P,O 5V Output of on-board 5V supply to power external devices, max 500mA
8 EVENTB I, PD LVTTL EventB input, 5V tolerant See note 1 below
9 Reserved
10 GND Gnd 0 Ground connection
11 Reserved
12 GND Gnd 0 Ground connection
13 1PPS_OUT O LVTTL First pulse-per-second output (PPS1) of the OEM receiver. Also available on the 6-pin
header, see 3.6
14 Reserved
15 EVENTA1 I,PD LVTTL EventA input, 5V tolerant. The logical level on EVENTA1 and EVENTA2
pins are ORed before being transferred to the EVENTA pin of the AsteRx-
m3 OEM. EVENTA2 available on the 6-pin
header, see 3.6
16 Reserved
17 COM2_CTS I,PU LVTTL COM2 cleared-to-send input. Must be driven low when ready to receive
data from the interface board.
18 COM2_RTS O LVTTL COM2 ready-to-send output. Driven low when interface board is ready
to receive data.
19 COM1_RX I RS232 COM1 Receive, RS232
20 COM1_TX O RS232 COM1 Transmit, RS232
21 COM2_RX I,PU LVTTL COM2 Receive (inactive state is high)
22 COM2_TX O LVTTL COM2 Transmit (inactive state is high)
23 GND Gnd 0 Ground connection
24 Reserved
25 GND Gnd 0 Ground connection
26 GND Gnd 0 Ground connection
27 ET_RD+ Ethernet Ethernet receive data + input See note 2 below
28 GND Gnd 0 Ground connection
29 ET_RD- Ethernet Ethernet receive data – input See note 2 below
1 2
43 44