cy8c3446lti-075es2 Cypress Semiconductor Corporation., cy8c3446lti-075es2 Datasheet - Page 25

• Manufacturer Part Number: cy8c3446lti-075es2
• Description: Psoc? 3 Cy8c34 Family Errata Silicon Revision Es2
• Manufacturer: Cypress Semiconductor Corporation.

38. SIO Port Registers
39. I/O Pin Configuration
January 7, 2011
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PROBLEM DEFINITION
Reading and writing to the SIO port registers with the DMA causes incorrect data to be written to or read from
the port register.
PARAMETERS AFFECTED
NA
TRIGGER CONDITION(S)
Reading and writing the SIO port registers with the DMA.
PRT12.SIO_HYST_EN
PRT12.SIO_REG_HIFREQ
PRT12.SIO_DIFF
PRT12.SIO_CFG
SCOPE OF IMPACT
Incorrect data will be latched in the SIO port register on a write. Incorrect data will be read from a SIO port
register on a read.
WORKAROUND
Do not use the DMA to read or write to the SIO port registers.
FIX STATUS
Silicon revision fix confirmed in production silicon.
PROBLEM DEFINITION
Using Pin Configuration Registers to read or write odd number port pins (PRTx_PC1, PRTx_PC3, PRTx_PC5,
PRTx_PC7 where x = Port Number) does not work when using DMA.
PARAMETERS AFFECTED
NA
TRIGGER CONDITION(S)
Using Pin Configuration registers to read or write odd number port pins with DMA.
WORKAROUND
Use CPU to read or write to the Pin Configuration registers or use DMA to read and write to the Port
Configuration register.
FIX STATUS
Silicon revision fix confirmed in production silicon.
Document Number: 001-61136 Rev. *C
Errata Document
PSoC
®
3: CY8C34 Family
25
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