MXT1664T3-ABESSQTP datasheet(53/98 Pages) MICROCHIP

53 / 98 page

MXT1664T3 2.0

 2018 Microchip Technology Inc.

DS40002054A-page 53

FIGURE 10-9:

SEND AUTO-RETURN – PACKET SEQUENCE

The USB report ID used is that for Object Protocol commands and responses; see Table 10-3 on page 50 for the value.

The command packet has the format given in Figure 10-10.

FIGURE 10-10:

SEND AUTO-RETURN – COMMAND PACKET FORMAT

In Figure 10-10:

• Rpt ID is the USB report ID used is that for Object Protocol commands and responses (see Table 10-3 on page 50

for the value).

• Command ID is the command ID for the Send Auto-return command (0x88).

• Reserved Bytes are reserved bytes with a value of 0x00.

The response packet has the format given in Figure 10-11. Note that with this command, the command packet does not

include an address pointer as the device already knows the address of the Message Processor T5 object.

FIGURE 10-11:

SEND AUTO-RETURN – RESPONSE PACKET FORMAT

Once the device has responded to the command, it starts sending message data. Each time a message is generated

in the Message Processor T5 object, the device automatically sends a message packet to the host with the data. The

message packets have the format given in Figure 10-12.

Send Auto-return Command Packet

Response Packet

Message Data Packet

Null Packet to Terminate

Host

Device

0x88

Command

Rpt ID

Reserved Bytes

(62 Bytes)

0x00

...

0x88

Command

Received

Rpt ID

Reserved Bytes

(62 Bytes)

0x00

...

MXT1664T3-ABESSQTP Datasheet(PDF) 53 Page - Microchip Technology

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