Freescale Semiconductor MCF5480 User Manual

Page 53

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Terminology and Notational Conventions

MCF548x Reference Manual, Rev. 3

Freescale Semiconductor

liii

Table 10-3/10-5

Bits BA, DT, and AT: The 0 and 1 are switched. Setting each bit enables operation, while clearing disables
operation. The 0 and 1 (or the corresponding descriptions) need to be swapped for all three bits.

11.4.2/11-8

Remove all text from bullet item #2 starting with “This scenario works for all pulses except....” This errata
does not apply to this processor.

13.1.1/13-1

Correct the cross-reference link at top of page that reads “Section 3.8.1, ‘Exception Stack Frame
Definition.’”

Table 15-27/15-24

In the bit 7-6, PAR1_E1MDC entry, change ‘11’ bit setting description from: “E1MDC pin configured for
FEC1 MDC function” to “E1MDC pin configured for FEC1 E1MDC function” to be consistent with rest of
section.

Table 15-34/15-30

Remove extraneous “/” from “DSPICS0//SS” in second sentence of the PAR_CS0 bit description.

Table 16-1/16-2

Extend SSCR entry to include bytes 2 & 3 as well as bytes 0 and 1, since it is a 32 bit register.

17.6.5.4.2/17-23

Change “transfer start” to “address latch enable” in second sentence.

21.4.9/21-28

Figure 21-14 and Table 21-18 are missing. Add them as shown below and correct the cross-references to
them.

Table iv. MCF548x Revision History (continued)

Section/Page

Substantive Changes

Figure 21-14. Segments within the Bit Time

Table 21-18. Time Segment Syntax

Syntax

Description

SYNC_SEG

System expects transitions to occur on the bus during this period.

Transmit Point

A node in transmit mode transfers a new value to the CAN bus at this point.

Sample Point

A node samples the bus at this point. If the three samples per bit option is selected,
then this point marks the position of the third sample.

SYNC_SEG

Time Segment 1

Time Segment 2

1

4 ... 16

2 ... 8

8 ... 25 Time Quanta

= 1 Bit Time

NRZ Signal

Sample Point
(single or triple sampling)

(PROP_SEG + PSEG1 + 2)

(PSEG2 + 1)

Transmit Point

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