參數(shù)資料
型號: ISP1761BE,551
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP128
封裝: 14 X 20 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT425-1, LQFP-128
文件頁數(shù): 27/164頁
文件大?。?/td> 767K
代理商: ISP1761BE,551
ISP1761_5
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 05 — 13 March 2008
121 of 163
NXP Semiconductors
ISP1761
Hi-Speed USB OTG controller
10.7.6 DMA Interrupt Enable register
This 2 bytes register controls the interrupt generation of the source bits in the DMA
Interrupt Reason register. The bit allocation is given in Table 136. The bit description is
given in Table 134.
Logic 1 enables the interrupt generation. The values after a (bus) reset are logic 0
(disabled).
[1]
The reserved bits should always be written with the reset value.
10.7.7 DMA Endpoint register
This 1 byte register selects a USB endpoint FIFO as the source or destination for DMA
transfers. The bit allocation is given in Table 137.
9
-
reserved
8
DMA_XFER_OK
DMA Transfer OK: Logic 1 indicates that the DMA transfer has
been completed, that is, DMA transfer counter has become zero.
7 to 0
-
reserved
Table 135. Internal EOT-functional relation with the DMA_XFER_OK bit
INT_EOT
DMA_XFER_OK
Description
1
0
During the DMA transfer, there is a premature termination with
short packet.
1
DMA transfer is completed with a short packet and the DMA
transfer counter has reached 0.
0
1
DMA transfer is completed without any short packet and the
DMA transfer counter has reached 0.
Table 134. DMA Interrupt Reason register (address 0250h) bit description …continued
Bit
Symbol
Description
Table 136. DMA Interrupt Enable register (address 0254h) bit allocation
Bit
15
14
13
12
11
10
9
8
Symbol
reserved[1]
IE_GDMA_
STOP
reserved[1]
IE_INT_
EOT
reserved[1]
IE_DMA_
XFER_OK
Reset
00000000
Bus reset
00000000
Access
R/W
Bit
7
6
5
4
3
2
1
0
Symbol
reserved[1]
Reset
00000000
Bus reset
00000000
Access
R/W
Table 137. DMA Endpoint register (address 0258h) bit allocation
Bit
7
6
5
4
3
2
1
0
Symbol
reserved[1]
EPIDX[2:0]
DMADIR
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