IA186EB Datasheet, PDF (77/85 Pages) InnovASIC, Inc – 8-Bit/16-Bit Microcontrollers

IA186EB/IA188EB
8-Bit/16-Bit Microcontrollers
Data Sheet
July 10, 2011
9. Errata
The following errata are associated with Version 0 of the IA186EB/IA188EB. A workaround to
the identified problem has been provided where possible.
9.1 Summary
Table 25 presents a summary of errata.
Table 25. Summary of Errata
Errata No.
1
Problem
Alternate Mode (TxCON[1] == 1) for timer 0 and 1 has some functional
issues.
2
When the extension byte (mod field) is set to ―11,‖ some instructions will
cause the CPU to hang.
3
When the chip is put in SFNM mode for INT0 or INT1, the LVL bit is
automatically set for those interrupts.
4
Timer 2 will stop or not start counting.
5
Write does not occur when counter is actively counting.
6
Program Counter can become corrupted if an interrupt occurs.
7
Bound instruction uses bad data when index addresses are on odd
boundary in memory.
Ver. 0
Exists
Ver. 2
Fixed
Exists _Fixed
Exists _Fixed
Exists Fixed
Exists Fixed
Exists Fixed
Exists Fixed
8
Pin LOCK_n does not have an internal pullup and will float during reset
and bus hold.
Exists Exists
9
The Relocation Register (RELREG, PCB offset 0xA8) can only be modified
by an 8-bit write.
Exists
Exists
10
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.
Exists Exists
11
NMI cannot bring chip out of powerdown mode.
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Exists
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