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參數(shù)資料
| 型號： | IA82510-PDW28I-R-01 |
| 廠商： | Innovasic Semiconductor |
| 文件頁數(shù)： | 11/25頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ASYNCHRONOUS SERIAL CTRL |
| 標(biāo)準(zhǔn)包裝： | 325 |
| 系列： | * |
IA82510
Data Sheet
Asynchronous Serial Controller
February 25, 2011
IA211001219-05
http://www.Innovasic.com
UNCONTROLLED WHEN PRINTED OR COPIED
Customer Support:
Page 19 of 25
1-888-824-4184
Table 7. Summary of Errata (Continued)
Errata
No.
Problem
Ver. 00
Ver. 01
Ver. 02
12
Device fails to reset interrupt signal in auto acknowledge mode
when character is read from RX FIFO.
Exists
Fixed
13
RX FIFO locks up unexpectedly just after configuration and
before starting reception.
NA
Exists
14
Unreliable transmits in AUTO TX mode.
NA
Exists
7.2
Detail
Errata No. 1
Problem:
Scrambled data during boot code shuts down UART, however device works for
application code.
Description:
The RX FIFO is locked, configuration of all registers is done, then the RX FIFO is
unlocked just before entering loopback mode in both boot and application code before normal
operations begin. Boot code additionally does a blind block read of all registers before normal
operations including two reads from the unwritten RX Data FIFO. RX unlock command is
inadvertently incrementing the write pointer. For boot code, the two reads of RX data cause the
read/write pointers to be permanently out of sync. For application code, the pointers end up
synched to the same location, only because the code waits for four characters before reading. This
ends up causing an RX overrun, but to our favor because the pointers are now synched.
Workaround:
Execute a “Flush RX FIFO” command (via RCM register) after configuration and
block read is complete.
Errata No. 2
Problem:
Device does not operate at 8 MHz in divide-by-one mode.
Description:
System testing revealed this operational deficiency.
Workaround:
Switch to divide-by-two mode using 2X clock input.
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| IA82510-PLC28C-00 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
| IA82510-PLC28C-01 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
| IA82510-PLC28I | 制造商:INNOVASIC 制造商全稱:INNOVASIC 功能描述:ASYNCHRONOUS SERIAL CONTROLLER |
| IA82510-PLC28I-00 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Controller Miscellaneous - Datasheet Reference |
| IA82510-PLC28I-01 | 制造商:INNOVASIC 制造商全稱:INNOVASIC 功能描述:ASYNCHRONOUS SERIAL CONTROLLER |
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