參數(shù)資料
型號(hào): 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(yè)數(shù): 48/100頁(yè)
文件大小: 508K
代理商: ISP1583ET2
ISP1583_7
NXP B.V. 2008. All rights reserved.
Product data sheet
Rev. 07 — 22 September 2008
50 of 99
NXP Semiconductors
ISP1583
Hi-Speed USB peripheral controller
If the DMA counter is disabled in the DMA transfer, it will still decrement and rollover when
it reaches zero.
9.4.3 DMA Conguration register (address: 38h)
This register denes the DMA conguration for GDMA mode. The DMA Conguration
register consists of 2 bytes. The bit allocation is given in Table 56.
Table 54.
DMA Transfer Counter register: bit allocation
Bit
31
30
29
28
27
26
25
24
Symbol
DMACR4 = DMACR[31:24]
Reset
00000000
Bus reset
00000000
Access
R/W
Bit
23
22
21
20
19
18
17
16
Symbol
DMACR3 = DMACR[23:16]
Reset
00000000
Bus reset
00000000
Access
R/W
Bit
15
14
13
12
11
10
9
8
Symbol
DMACR2 = DMACR[15:8]
Reset
00000000
Bus reset
00000000
Access
R/W
Bit
7
6
5
4
3
2
1
0
Symbol
DMACR1 = DMACR[7:0]
Reset
00000000
Bus reset
00000000
Access
R/W
Table 55.
DMA Transfer Counter register: bit description
Bit
Symbol
Description
31 to 24
DMACR4 = DMACR[31:24]
DMA transfer counter byte 4 (MSByte)
23 to 16
DMACR3 = DMACR[23:16]
DMA transfer counter byte 3
15 to 8
DMACR2 = DMACR[15:8]
DMA transfer counter byte 2
7 to 0
DMACR1 = DMACR[7:0]
DMA transfer counter byte 1 (LSByte)
Table 56.
DMA Conguration register: bit allocation
Bit
15
14
13
12
11
10
9
8
Symbol
reserved
ATA_
MODE
DMA_MODE[1:0]
PIO_MODE[2:0]
Reset
-
00000
0
Bus reset
-
00000
0
Access
-
R/W
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