DSP56300 Motorola Inc, DSP56300 Datasheet - Page 9

• Manufacturer Part Number: DSP56300
• Description: DSP56301 Digital Signal Processor
• Manufacturer: Motorola Inc

Errata
Number
ED28
ED29
DSP56301 Errata
 1996-2002, Motorola
Document Update
Description (added 1/7/1997; identified as Documentation Errata
2/1/99):
When two consecutive LAs have a conditional branch instruction
at LA-1 of the internal loop, the part does not operate properly. For
example, the following sequence may generate incorrect results:
internal loop
LABEL2
LABEL1
_DEST
Workaround: Put an additional NOP between LABEL2 and
LABEL1.
Description (added 9/12/1997; identified as a Documentation
errata 2/1/99):
When the ESSI transmits data with the CRA Word Length Control
bits
(WL[2:0]) = 100, the ESSI is designed to duplicate the last bit of the
24-bit transmission eight times to fill the 32-bit shifter. Instead, after
shifting the 24-bit word correctly, eight 0s are being shifted.
Workaround:
None at this time.
Freescale Semiconductor, Inc.
DSP56301 Digital Signal Processor
For More Information On This Product,
DO #5, LABEL1
NOP
DO #4, LABEL2
NOP
MOVE (R0) +
BSCC _DEST
NOP
NOP
NOP
NOP
NOP
NOP
RTS
301CE2K30A_0_8
Go to: www.freescale.com
Mask:2K30A
Chip Errata
; conditional branch at LA-1 of
; internal LA
; external LA
ng 12/19/02 pg. 9
Applies
to Mask
2K30A
2K30A