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STM8S208xx/STM8S207xx Errata sheet
STM8S performance line revision X device limitations
Silicon identification
This errata sheet applies to the revision X of the STMicroelectronics STM8S performance line products. The full list of root part numbers is shown in Table 2. The products are identifiable as shown in Table 1:

by the Revision code marked below the Sales Type on the device package by the last three digits of the Internal Sales Type printed on the box label Device identification
Sales type STM8S207xxxx STM8S208xxxx Revision code(1) marked on device X X
Table 1.
1. Refer to Appendix A: Revision code on device marking for details on how to identify the Revision code on the different packages.
Table 2.
Device summary
Reference Part number STM8S207MB, STM8S207RB, STM8S207R8, STM8S207R6, STM8S207CB, STM8S207C8, STM8S207S8, STM8S207K6 STM8S208MB, STM8S208RB
STM8S207xx STM8S208xx
December 2008
Rev 1
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Contents
Errata sheet
Contents
1 2 Product evolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Silicon limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2.1 2.2 2.3 2.4 HSI RC oscillator cannot be switched off in RUN mode . . . . . . . . . . . . . . . 4 LSI oscillator remains ON during Active Halt mode (MVR ON) when AWU uses HSE/Div as input clock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 TIM1_CH4 mapped on PC4 and PD7 ports by AFR4 option . . . . . . . . . . . 4 UART PE flag cannot be cleared during reception of first half of Stop bit . 5
Appendix A Revision code on device marking . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
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Errata sheet
Product evolution
1
Product evolution
This table summarizes the fix status. Table 3.
Section Section 2.1
Product evolution summary
Limitation HSI RC oscillator cannot be switched off in RUN mode LSI oscillator remains ON during Active Halt mode (MVR ON) when AWU uses HSE/Div as input clock TIM1_CH4 mapped on PC4 and PD7 ports by AFR4 option UART PE flag cannot be cleared during reception of first half of Stop bit Status
Section 2.2
No fix planned
Section 2.3 Section 2.4
Workaround available
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Silicon limitations
Errata sheet
2
2.1
Silicon limitations
HSI RC oscillator cannot be switched off in RUN mode
Description The HSI RC oscillator cannot be switched off in Run mode. This causes negligible extra power consumption compared to the total consumption of the MCU in Run mode. Workaround No workaround available.
2.2
LSI oscillator remains ON during Active Halt mode (MVR ON) when AWU uses HSE/Div as input clock
Description The LSI RC oscillator is not switched off in Active Halt mode with main voltage regulator (MVR) on, when the AWU uses high speed external clock divided by prescaler (HSE/Div) (clock source option enabled by CKAWUSEL option bit). This causes negligible extra power consumption compared to the total consumption of the MCU in Active Halt mode with main voltage regulator (MVR) on. Workaround No workaround available.
2.3
TIM1_CH4 mapped on PC4 and PD7 ports by AFR4 option
Description Timer 1 channel 4 (TIM1_CH4) is available both on pin PC4 and PD7 when the alternate function remapping AFR4 option bit is set. Workaround No workaround available. It is recommended to only use the AFR4 Alternate function remapping option for the 44-pin package where PC4 is not present.
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Errata sheet
Silicon limitations
2.4
UART PE flag cannot be cleared during reception of first half of Stop bit
Description When the UART is in reception mode and a parity error (PE) occurs, the PE flag is set by hardware. This flag cannot be cleared during the first half of the Stop bit period. If software tries to clear the PE flag at this time, the flag is set again by hardware, generating an unwanted interrrupt if the PIEN bit is set in the UART_CR1 register. Workaround Disable PE interrupts and, after the RXNE bit is set, use polling to manage the PE flag. For example, this could be done in the RXNE interrupt service routine.
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Revision code on device marking
Errata sheet
Appendix A
Revision code on device marking
Figure 1 shows the marking compositions for the LQFP80 package. Figure 1. LQFP80 top package view
Revision code X STM8S208
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Errata sheet
Revision history
Revision history
Table 4.
Date 04-Dec-2008
Document revision history
Revision 1 Initial revision Changes
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Errata sheet
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