Motorola MPC8260 - Manual (Page 514)

16-6 MPC8260 PowerQUICC II UserÕs Manual MOTOROLA
Part IV. Communications Processor Module
For synchronous communication, the internal clock is identical to the baud-rate output. To
get the preferred rate, select the system clock according to the following:
For example, to get a rate of 64 kbps, the system clock can be 24.96 MHz,
BRGCx[DIV16] = 0, and BRGCx[CD] = 389.
Sync Baud Rate
BRGCLK or External Clock Source
Prescale Divider
( )
Clock Divider + 1
( ) ·
-------------------------------------------------------------------------------------------------- =
BRGCx[EXTC]
BRGCx[DIV16]
( )
BRGCx[CD] + 1
( ) ·
------------------------------------------------------------------------------------------------ =