參數(shù)資料
型號(hào)： SPEAR-07-NC03
廠商： STMICROELECTRONICS
元件分類： 微控制器/微處理器
英文描述： 1 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PBGA180
封裝： LEAD FREE, 12 X 12 MM, 1.70 MM HEIGHT, LFBGA-180
文件頁(yè)數(shù)： 8/194頁(yè)
文件大?。?/td> 1987K
代理商： SPEAR-07-NC03
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SPEAR-07-NC03
6 Blocks description
Client interrupt status register reports the interrupt status of interrupts from the following
sources:
DMA_RX, DMA_TX and IO_IP.
All the significant register bits are read/Clear (RC): they can be read, a write with '0' has no
effect while writing '1' reset the bit value to '0'.
Each bit can bi cleared writing '1' (writing '0' will have no effect)
TX_IO_INT
: Set when the external IO device (IEEE1284 block), connected to the TX DMA port,
sets an interrupt request.
TX_MERR_INT
: Set when AHB master receives an error response from the selected slave and
the internal arbiter is granting the TX FIFO.
TX_SERR_INT
: Set when the AHB slave drives an error on the AHB BUS as response to an
TX_FIOFO_PUSH request. This condition is achieved when on of the following conditions is
true:
i.
TX_DMA.START_SERR_EN is true and retry counter expires.
ii.
Slave access with size > 32 bit.
iii.
Slave access with a read request.
iv.
Slave access when the TX_DMA_START.DMA_EN is true (DMA Master Mode)
TX_DONE
: Set when the TX master DMA completes.
TX_IOREQ
: Set when the DMA TX is active (master or slave mode) and the IO interface
request cannot be served because:
i.
FIFO is empty
ii.
Current DMA cycle is finished and the next one is not yet started.
TX_RTY
: Set when the AHB slave retry counter expires (even if the
TX_DMA_START.SERR_EN is false), that means that an AHB TX FIFO write has been
attempt, with a wrong byte size attributes, more than allowed by the retry counter.
TX_TO
: Set when some data are stalled inside the TX FIFO for too long time.
TX_ENTRY
: Set when the TX DMA is triggered by a number of empty TX FIFO entries bigger
than the value set in the DMA_CNTL register.
TX_FULL
: Set when the TX FIFO becomes full (< 4 byte entries available).
TX_EMPTY
: Set when the TX FIFO becomes empty.
RX_IO_INT
: Set when the external IO device (IEEE1284 block), connected to the RX DMA
port, sets an interrupt request.
RX_MERR_INT
: Set when AHB master receives an error response from the selected slave and
the internal arbiter is granting the RX FIFO.
RX_SERR_INT
: Set when the AHB slave drives an error on the AHB BUS as response to a
RX_FIFO_POP
request. This condition is achieved when on of the following conditions is true:
v.
RX_DMA.START_SERR_EN is true and retry counter expires.
vi.
Slave access with size > 32 bit.
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