參數(shù)資料
型號: ISP1583ET2
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PBGA64
封裝: 6 X 6 MM, 0.80 MM HEIGHT, LEAD FREE, PLASTIC, MO-195, SOT543-1,TFBGA-64
文件頁數(shù): 55/100頁
文件大?。?/td> 508K
代理商: ISP1583ET2
ISP1583_7
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 07 — 22 September 2008
57 of 99
NXP Semiconductors
ISP1583
Hi-Speed USB peripheral controller
9.4.7 DMA Interrupt Enable register (address: 54h)
This 2-byte register controls the interrupt generation of the source bits in the DMA
Interrupt Reason register (see Table 72). The bit allocation is given in Table 75. The bit
description is given in Table 73.
Logic 1 enables the interrupt generation. After a bus reset, interrupt generation is
disabled, with values turning to logic 0.
9.4.8 DMA Endpoint register (address: 58h)
This 1-byte register selects a USB endpoint FIFO as a source or destination for DMA
transfers. The bit allocation is given in Table 76.
2
TF_RD_DONE
Task File Read Done: Logic 1 indicates that the Read Task Files
command has been completed.
1
CMD_INTRQ_OK
Command Interrupt OK: Logic 1 indicates that all bytes from the
FIFO have been transferred (DMA Transfer Count zero) and an
interrupt on pin INTRQ was detected.
0
-
reserved
Table 74.
Internal EOT-functional relation with 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 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 73.
DMA Interrupt Reason register: bit description …continued
Bit
Symbol
Description
Table 75.
DMA Interrupt Enable register: bit allocation
Bit
15
14
13
12
11
10
9
8
Symbol
TEST4
reserved
IE_GDMA_
STOP
IE_EXT_
EOT
IE_INT_
EOT
IE_INTRQ_
PENDING
IE_DMA_
XFER_OK
Reset
0
-
00000
Bus reset
0
-
00000
Access
R
-
R/W
Bit
7
6
5
4
3
2
1
0
Symbol
reserved
IE_
READ_1F0
IE_BSY_
DONE
IE_TF_
RD_DONE
IE_CMD_
INTRQ_OK
reserved
Reset
-
0000
-
Bus reset
-
0000
-
Access
-
R/W
-
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