IA186XL Datasheet, PDF (70/75 Pages) InnovASIC, Inc – 16-Bit Microcontroller

IA186XL/IA188XL
16-Bit Microcontrollers
Data Sheet
July 6, 2011
Errata
No.
11
12
Problem
MOVS/POP/PUSH instructions interrupted by
DMA can corrupt data.
MOVS/POP/PUSH instructions interrupted by
DMA can corrupt data.
Ver. 0
Exists
Exists
Ver. 1
Exists
Exists
Ver. 2
Fixed
Fixed
8.2 Detail
Errata No. 1
Problem: Pin LOCK_n does not have an internal pullup.
Description: Because Pin LOCK_n does not have an internal pullup, it will float during reset
and bus hold.
Workaround: An external pullup may be necessary if there is high external load on the signal.
Errata No. 2
Problem:
When the timer compare register for any of the timers is set to x0000, the max count is xFFFF
instead of x10000 as in the OEM part.
Description: The timer output will change one count earlier than it should when the max count
is set to x0000.
Workaround: The workaround is application dependent. Please contact Innovasic Technical
Support if this erratum is an issue.
Errata No. 3
Problem:
When using external interrupts IRQ0 or IRQ1 in Cascade Mode, the acknowledge signal on
INTA0 or INTA1 may be lost or truncated.
Description: The acknowledge for IRQ0 or IRQ1 will be lost or truncated in Cascade Mode if
another interrupt, with a higher priority setting (as configured in the interrupt control registers),
occurs just before or during the acknowledge. This does not apply to interrupts generated by the
DMA. This also does not apply when using the inherent priority settings (all interrupts
configured with the same priority).
®
IA211080711-09
UNCONTROLLED WHEN PRINTED OR COPIED
Page 70 of 75
http://www.Innovasic.com
Customer Support:
1-888-824-4184