Datasheet

Infrared Serial Communications
Technical Data MC68HC908LJ12 — Rev. 2.1
264 Infrared Serial Communications Interface Module (IRSCI) Freescale Semiconductor
13.11.7 SCI Baud Rate Register (SCBR)
The baud rate register selects the baud rate for both the receiver and the
transmitter.
CKS — Baud Clock Input Select
This read/write bit selects the source clock for the baud rate
generator. Reset clears the CKS bit, selecting CGMXCLK.
1 = Bus clock drives the baud rate generator
0 = CGMXCLK drives the baud rate generator
SCP1 and SCP0 — SCI Baud Rate Prescaler Bits
These read/write bits select the baud rate prescaler divisor as shown
in Table 13-7. Reset clears SCP1 and SCP0.
SCR2–SCR0 — SCI Baud Rate Select Bits
These read/write bits select the SCI baud rate divisor as shown in
Table 13-8. Reset clears SCR2–SCR0.
Address: $0019
Bit 7654321Bit 0
Read:
CKS
0
SCP1 SCP0 R SCR2 SCR1 SCR0
Write:
Reset:00000000
= Unimplemented R = Reserved
Figure 13-19. SCI Baud Rate Register (SCBR)
Table 13-7. SCI Baud Rate Prescaling
SCP1 and SCP0 Prescaler Divisor (PD)
00 1
01 3
10 4
11 13