Datasheet

Infrared Serial Communications
Data Sheet MC68HC908LJ24/LK24 — Rev. 2.1
282 Infrared Serial Communications Interface Module (IRSCI) Freescale Semiconductor
13.11.7 SCI Baud Rate Register
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