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STR71X CLOCK CONFIGURATIONS EASY SETUP

11 HDLC

This calculation sheet allows the configuration and calculation of the transmit and the receive

clocks.

For the two cases it is necessary to select the clock source (Internal or External), to set the

value of the clock source if external clock source was selected, to configure the clock divider

value and to select the transmission and the receive data code.

We obtain as a result:

■

The transmit and the receive clocks,

■

The transmit and the receive registers configuration.

Figure 11. HDLC calculation sheet

Note: For more details, refer to the HDLC section of the reference manual.

As an example, as shown in Figure 11, the HDLC is configured as follows:

■

The transmit clock is set to 1MHz with an internal clock source, a clock divider value set to

9 and with Manchester transmission data code,

■

The receive clock is set to 500KHz with an internal clock source, a clock divider value set to

39 and with NRZI transmission data code.