MC68HC908LJ12CPB FREESCALE [Freescale Semiconductor, Inc], MC68HC908LJ12CPB Datasheet - Page 263

• Manufacturer Part Number: MC68HC908LJ12CPB
• Description: 8-bit microcontroller units
• Manufacturer: FREESCALE [Freescale Semiconductor, Inc]

Infrared Serial Communications
13.11.7 SCI Baud Rate Register (SCBR)
Technical Data
264
Address:
Infrared Serial Communications Interface Module (IRSCI)
The baud rate register selects the baud rate for both the receiver and the
transmitter.
CKS — Baud Clock Input Select
SCP1 and SCP0 — SCI Baud Rate Prescaler Bits
SCR2–SCR0 — SCI Baud Rate Select Bits
Reset:
Read:
Write:
This read/write bit selects the source clock for the baud rate
generator. Reset clears the CKS bit, selecting CGMXCLK.
These read/write bits select the baud rate prescaler divisor as shown
in
These read/write bits select the SCI baud rate divisor as shown in
Table
Table
1 = Bus clock drives the baud rate generator
0 = CGMXCLK drives the baud rate generator
$0019
Bit 7
CKS
13-8. Reset clears SCR2–SCR0.
0
Figure 13-19. SCI Baud Rate Register (SCBR)
SCP1 and SCP0
13-7. Reset clears SCP1 and SCP0.
= Unimplemented
Table 13-7. SCI Baud Rate Prescaling
00
01
10
11
6
0
0
SCP1
5
0
SCP0
4
0
Prescaler Divisor (PD)
R
R
3
0
MC68HC908LJ12
= Reserved
13
1
3
4
SCR2
Freescale Semiconductor
2
0
SCR1
1
0
—
Rev. 2.1
SCR0
Bit 0
0