Datasheet

Enhanced Serial Communications Interface (ESCI) Module
MC68HC908QB8 Data Sheet, Rev. 3
134 Freescale Semiconductor
Table 13-10. ESCI Baud Rate Selection Examples
PDS[2:1:0] PSSB[4:3:2:1:0] SCP[1:0]
Prescaler
Divisor
(BPD)
SCR[2:1:0]
Baud Rate
Divisor
(BD)
Baud Rate
(f
Bus
= 4.9152 MHz)
000 XXXXX 00 1 000 1 76,800
111 00000 00 1 000 1 9600
1 1 1 0 0 0 0 1 0 0 1 0 0 0 1 9562.65
1 1 1 0 0 0 1 0 0 0 1 0 0 0 1 9525.58
1 1 1 1 1 1 1 1 0 0 1 0 0 0 1 8563.07
000 XXXXX 00 1 001 2 38,400
000 XXXXX 00 1 010 4 19,200
000 XXXXX 00 1 011 8 9600
000 XXXXX 00 1 100 16 4800
000 XXXXX 00 1 101 32 2400
000 XXXXX 00 1 110 64 1200
000 XXXXX 00 1 111 128 600
000 XXXXX 01 3 000 1 25,600
000 XXXXX 01 3 001 2 12,800
000 XXXXX 01 3 010 4 6400
000 XXXXX 01 3 011 8 3200
000 XXXXX 01 3 100 16 1600
000 XXXXX 01 3 101 32 800
000 XXXXX 01 3 110 64 400
000 XXXXX 01 3 111 128 200
000 XXXXX 10 4 000 1 19,200
000 XXXXX 10 4 001 2 9600
000 XXXXX 10 4 010 4 4800
000 XXXXX 10 4 011 8 2400
000 XXXXX 10 4 100 16 1200
000 XXXXX 10 4 101 32 600
000 XXXXX 10 4 110 64 300
000 XXXXX 10 4 111 128 150
000 XXXXX 11 13 000 1 5908
000 XXXXX 11 13 001 2 2954
000 XXXXX 11 13 010 4 1477
000 XXXXX 11 13 011 8 739
000 XXXXX 11 13 100 16 369
000 XXXXX 11 13 101 32 185
000 XXXXX 11 13 110 64 92
000 XXXXX 11 13 111 128 46