This document contains information on a product under development. Motorola reserves the right to change or
discontinue this product without notice. © Motorola, Inc., 2003. All rights reserved.
This document discusses silicon errata information that relates to the 0K85C, 2K85C, 3K85C, 4K85C, 5K85C and
6K85C masks of the MC68VZ328 (DragonBall VZ).
Table 1. Silicon Errata to MC68VZ328
Erratum
Number
Erratum
Description
Workaround
Applies
to Masks
1 EMUCS signal
does not function
properly (data path
not through in CS
module).
Effect:
Cannot start M68VZ328ADS in EMU mode. This signal is used for
emulation system development or debug monitor ROM only. User
applications normally do not use this function.
Workaround:
The monitor program on the M68VZ328ADS can be programmed in
user Flash memory space rather than EMU memory space.
0K85C
2K85C
3K85C
4K85C
5K85C
6K85C
2 EMU enable bit is
shorted to Bus
break enable.
Effect:
No usage impact. User can still use hardware break point.
Workaround:
None needed.
0K85C
3 Using SDRAM
CAS latency 2,
multi-bank
configuration, and
LCD on
simultaneously will
cause the system
to hang.
Effect:
The processor cannot be programmed with this simultaneous
configuration.
Workaround:
Use CAS latency 1 SDRAM (for 16 MBit) or configure SDRAM to 1
bank rather than 4 banks. This might cause an estimated
performance downgrade of less than 2% compared to the original
intended configuration.
0K85C
2K85C
3K85C
4K85C
5K85C
6K85C
4 No hysteresis is
observed on reset
pin and Interrupt
I/O pins.
Effect:
For systems using RC circuit to generate reset signal, placed an
external Schmitt trigger buffer (3 pin small IC).
Workaround:
Use external Schmitt trigger device or reset chip.
0K85C
Chip Errata
MC68VZ328CE/D
Rev.6 12/2003
MC68VZ328 Integrated
Processor
(DragonBall™ VZ)
Chip Errata for Masks:
0K85C, 2K85C, 3K85C,
4K85C, 5K85C and
6K85C
Frees
cale Semiconductor,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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