MC68HC908AP16CFB datasheet(285/440 Pages) MOTOROLA

285 / 440 page

Infrared Serial Communications Interface Module (IRSCI)

I/O Registers

MC68HC908AP Family — Rev. 2.5

Data Sheet

MOTOROLA

285

14.10.7 IRSCI 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 14-7. 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 14-8. Reset clears SCR2–SCR0.

Address:

$0046

Bit 7

654321

Bit 0

Read:

CKS

SCP1

SCP0

SCR2

SCR1

SCR0

Write:

Reset:

00000000

= Unimplemented

= Reserved

Figure 14-19. IRSCI Baud Rate Register (IRSCBR)

Table 14-7. SCI Baud Rate Prescaling

SCP1 and SCP0

Prescaler Divisor (PD)

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

MC68HC908AP16CFB Datasheet(PDF) 285 Page - Motorola, Inc

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