Dust Networks Inc. M1030 Manuel D’Utilisation
Interfaces
12
D
UST
N
ETWORKS
™
M1030-2 M
OTE
D
ATASHEET
C
ONFIDENTIAL
The following diagram illustrates the pins used in the handshaking protocol:
Figure 9 Diagram of Pins Used in Handshaking Protocol
7.4.1.2
Serial Interface Timing Requirements
The following diagram shows interpacket timing.
Figure 10 Serial Interpacket Timing Diagram
Timout (T1) is the interpacket_delay for communications into the mote, and is defined as the minimum time after the mote
receives the last byte of a packet before it can start receiving the next packet (see Table 13 for values).
receives the last byte of a packet before it can start receiving the next packet (see Table 13 for values).
Table 13 Timing Values
Variable
Meaning
Min
Max
Unit
diag_ack_timeout
The mote responds to all requests within this time.
125
ms
boot_delay
The time between mote power up and serial interface
availability.
availability.
250
ms
interpacket_delay
The sender of an HDLC packet must wait at least this amount
of time before sending another packet.
of time before sending another packet.
20
ms