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Table 3.1 Selection Table of TD5(3)USPCAN Working Mode
Pin level
Working mode
MODE
CFG
RST
0
1
1
UART to CAN
1
1
1
SPI to CAN
0
0
1
UART
configuration
1
0
1
SPI
configuration
X
X
0
reset
If it is necessary to switch the working mode of the product, after changing the pin level, the product
must be reset before it can enter the set working mode. It should be noted that in order to ensure the
successful reset of the product, the reset holding time is at least 100us, and after the reset, the waiting time for
the product initialization is at least 3ms, and the normal operation can only be carried out after the product
initialization is completed, as shown in Figure 3.1. Figure 3.2 is a schematic diagram of product working mode
switching.
Figure 3.1 Schematic diagram of reset timing
