Linx HUM-868-PRC, Руководство по данным

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Figure 86 shows a typical circuit using the HumPRC
TM
Series transceiver
with an external microcontroller.
In this example, C0 is low and C1 is high, so S0–S3 are outputs and S4–S7
are inputs. The inputs are connected to buttons that pull the lines high.
Internal pull-down resistors keep the lines from floating when the buttons
are open. The outputs are connected to external application circuitry.
LATCH_EN is low, so the outputs are momentary.
ACK_OUT and MODE_IND are connected to LEDs to provide visual
indication to the user.
PB is connected to a button and pull-down resistor to initiate the Join
Process when the button is pressed.
In this circuit, the Command Data Interface is connected to a
microcontroller for using some of the advanced features.
The microcontroller controls the state of the ACK_EN line. It can receive
a command, perform an action and then take the line high to send
Acknowledgement packets. This lets the user on the other end know that
the action took place and not just that the command was received.
Figure 86: HumPRC TM Series Transceiver Basic Application Circuit with a Microcontroller
µ
RXD
TXD
GND
VCC
GND
GND
GND
GND
GND
GND
GND
GND
GND VCC
S0 S1 S2 S3
GND
VCC
GPIO
GND
17
VC
C
21
GND
18
RESET
22
LNA_EN
23
PA_E
N
24
CMD_DATA_OUT
26
CMD_DATA_I
N
27
ACK_EN
28
PB
29
S6
2
GN
D
25
S7
1
MODE_IND
30
ACK_OUT
31
GND
32
S5
3
S4
4
ANT
19
GND
20
S3
5
S2
6
S1
7
S0
8
C0
10
C1
11
POWER_DOWN
12
LATCH_E
N
13
GN
D
9
GND
16
GND
15
GND
14
GND
GND
GND
VCC
VCC
VCC
VCC
GPIO
GPIO
GND
VCC
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND VCC
S4
S5
S6
S7
VCC
VCC VCC VCC VCC
GND
VCC VCC
GND
VCC
GND
VCC
GND
17
VC
C
21
GND
18
RESET
22
LNA_E
N
23
PA_EN
24
CMD_DATA_OUT
26
CMD_DATA_I
N
27
ACK_EN
28
PB
29
S6
2
GN
D
25
S7
1
MODE_IND
30
ACK_OUT
31
GND
32
S5
3
S4
4
ANT
19
GND
20
S3
5
S2
6
S1
7
S0
8
C0
10
C1
11
POWER_DOWN
12
LATCH_E
N
13
GN
D
9
GND
16
GND
15
GND
14
GND
VCC
GND
GND
GND
GND
GND
GND
GND
GND
GND
GND VCC
S0 S1 S2 S3
VCC
VCC
VCC
VCC
GND
VCC
GND
VCC
GND
VCC
VCC
GND
17
VC
C
21
GND
18
RESET
22
LNA_E
N
23
PA_EN
24
CMD_DATA_OUT
26
CMD_DATA_I
N
27
ACK_EN
28
PB
29
S6
2
GN
D
25
S7
1
MODE_IND
30
ACK_OUT
31
GND
32
S5
3
S4
4
ANT
19
GND
20
S3
5
S2
6
S1
7
S0
8
C0
10
C1
11
POWER_DOWN
12
LATCH_E
N
13
GN
D
9
GND
16
GND
15
GND
14
VCC
Figure 85: HumPRC
TM
Series Transceiver Basic Application Circuits for Bi-directional Remote Control
A
B