MPC8540 datasheet(1228/1302 Pages) FREESCALE

1228 / 1302 page

MPC8540 PowerQUICC III Integrated Host Processor Reference Manual, Rev. 1

A-16

Freescale Semiconductor

Revision History

11.4.5.2, 11-18

Insert the following two sentences after the eighth sentence of the first

paragraph:

“The boot sequencer expects the address offset to be a 32-bit (word) offset,

that is, the 2 low-order bits are not included in the boot sequencer command.

For example, to access LAWBAR0 (byte offset of 0x00C08), the boot

sequencer ADDR[0:17] should be set to 0x00302.”

11.4.5.2, 11-18

Insert the following sentence after the polynomial used for CRC calculation

in the fourth paragraph:

“CRC values are calculated using the above polynomial with a start value

of 0xFFFF_FFFF and an XOR with 0x0000_0000.”

12.3.1.9, 12-15

In Table 12-16, change the second sentence of the asserted (“1”) description

for the ULSR[BI] to read:

“A break condition is expected to last at least two character lengths and a

new character is not loaded until SIN returns to the mark state (logic 1) and

a valid START is detected.”

Chapter 13

Correct all instances of “UPWAIT” to “LUPWAIT.”

13.1.3.1, 13-3

Change the third sentence of the first paragraph to read:

“In addition to establishing the frequency of the external local bus clock,

CLKDIV also affects the resolution of signal timing shifts in GPCM mode,

and the interpretation of UPM array words in UPM mode.”

13.1.3.1, 13-4

In the last sentence, change “LCLK[0:3]” to “LCLK[0:2].”

13.2, 13-5

Delete the Reset State (outputs) column (and references to it) of Table 13-1.

13.2, 13-6, 13-7, and 13-9

In Table 13-2, change all instances of “RAS” to “RAS” and all instances of

CAS to CAS.

13.3.1.2.3, 13-16 and 17

In Table 13-7, Table 13-8, Figure 13-4, and Figure 13-5, change bits 17–18

to reserved.

13.4.4, 13-61

Insert the following footnote associated with the word ‘signals’ in the

second sentence of the section:

“If the LGPL4/LGTA/LUPWAIT/LPBSE signal is used as both an input and

an output, a weak pullup is required. Refer to the hardware specification for

details regarding termination options.”

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