22.3.5.4 Clock Frequencies for RS422 Interfaces

BiSS is commonly used with RS422 and RS485 interfaces. BiSS is able to match the SSI protocol easily as long as proper lengths of cable and speeds are set. For an approximation of different cable lengths for RS422 interfaces, refer to Table 22-17.

Table 22-17. RS422 Interfaces
Cable LengthClock Frequency
up to 10m10 MHz
up to 25m5 MHz
up to 60m2 MHz
up to 100m1 MHz
up to 200m500 KHz
up to 500m200 KHz
up to 1000m100 KHz
Note:
  1. Data rate and clock frequency depend on the physical layer used for BiSS communications.