AT32UC3L064-AUTES ATMEL [ATMEL Corporation], AT32UC3L064-AUTES Datasheet - Page 81

• Manufacturer Part Number: AT32UC3L064-AUTES
• Manufacturer: ATMEL [ATMEL Corporation]

10.4.20
10.4.21
32099DS–06/2010
GLOC
aWire
4. MGCFG2.ACCTRL bit is stuck at zero
5. MGCFG2.CONSEN field is stuck at zero
6. VERSION register reads 0x100
1. CAT asynchronous wake will be delayed by one AST peripheral event period
1. GLOC is non-functional
1. aWire PB mapping and PB clock mask number
2. SAB multiaccess reads are not working
3. If a reset happens during the last SAB write, the aWire will stall
4. aWire enable does not work in Static mode
None.
The ACCTRL bit in the MGCFG2 register is stuck at zero and cannot be written to one. The
analog comparators will be constantly enabled.
Fix/Workaround
None.
The CONSEN field in the MGCFG2 register is stuck at zero and cannot be written to a differ-
ent value. The CAT consensus filter does not function properly, so termination of QMatrix
data acquisition is controlled only by the MAX field in MGCFG1.
Fix/Workaround
None.
The VERSION register reads 0x100 instead of 0x200.
Fix/Workaround
None.
If the CAT detects a condition that should asynchronously wake the chip in Static mode, the
asynchronous wake will not occur until the next AST event. For example, if the AST is gen-
erating peripheral events to the CAT every 50 milliseconds, and the CAT detects a touch at
t=9200 milliseconds, the asynchronous wake will occur at t=9250 milliseconds.
Fix/Workaround
None.
Glue Logic Controller (GLOC) is non-functional.
Fix/Workaround
None.
The aWire PB has a different PB address and PB clock mask number.
Fix/Workaround
Use aWire PB address 0xFFFF6C00 and PB clock (PBAMASK) 24.
Reading more than one word, halfword, or byte in one command is not working correctly.
Fix/Workaround
Split the access into several single word, halfword, or byte accesses.
If a reset happens during the last word, halfword, or byte write the aWire will wait forever for
an acknowledge from the SAB.
Fix/Workaround
Reset the aWire by keeping the RESET_N line low for 100ms.
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