IA186EB Datasheet, PDF (78/85 Pages) InnovASIC, Inc – 8-Bit/16-Bit Microcontrollers

IA186EB/IA188EB
8-Bit/16-Bit Microcontrollers
Data Sheet
July 10, 2011
Errata No.
Problem
12
Illegal serial port modes do not match OEM part.
Ver. 0 Ver. 2
Exists Exists
13
Non-maskable interrupt (NMI) can be pre-empted by maskable interrupt.
Exists Exists
14
Ready signal may not be recognized in bus cycles with zero wait states.
Exists Exists
9.2 Detail
Errata No. 1
Problem: Alternate Mode (TxCON[1] == 1) for timer 0 and 1 has some functional issues.
Description:
TxOUT will continuously toggle at 1/2 CLKOUT regardless of count register values.
The maxcount compare will not work. The live count will compare against TxCMPA and
TxCMPB in alternate cycles. This could cause a compare (and the associated interrupt,
or switch the intended compare, or stop counting altogether) to occur early or not at all.
The TxOUT pin may start in the wrong state if the user writes to TxCON register
Bit [12].
When in retrigger mode, Timer 1 will not function correctly. Input pulses on T0IN will
cause counter to begin counting.
Workaround: None.
IA211080314-13
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