參數資料
型號: ISP1582BS
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Hi-Speed Universal Serial Bus peripheral controller
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQCC56
封裝: 8 X 8 MM, 0.85 MM PITCH, PLASTIC, MO-220, SOT-684-1, HVQFN-56
文件頁數: 41/66頁
文件大小: 325K
代理商: ISP1582BS
Philips Semiconductors
ISP1582
Hi-Speed USB peripheral controller
Preliminary data
Rev. 03 — 25 August 2004
41 of 66
9397 750 13699
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
9.4.3
DMA Configuration register (address: 38h)
This register defines the DMA configuration for GDMA mode. The DMA Configuration
register consists of 2 bytes. The bit allocation is given in
Table 52
.
Bit
Symbol
Reset
Bus reset
Access
Bit
Symbol
Reset
Bus reset
Access
Bit
Symbol
Reset
Bus reset
Access
23
22
21
20
19
18
17
16
DMACR3 = DMACR[23:16]
0
0
R/W
12
DMACR2 = DMACR[15:8]
0
0
R/W
4
DMACR1 = DMACR[7:0]
0
0
R/W
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
15
R/W
14
R/W
13
R/W
11
R/W
10
R/W
9
R/W
8
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
7
R/W
6
R/W
5
R/W
3
R/W
2
R/W
1
R/W
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Table 51:
Bit
31 to 24
23 to 16
15 to 8
7 to 0
DMA Transfer Counter register: bit description
Symbol
DMACR4, DMACR[31:24]
DMACR3, DMACR[23:16]
DMACR2, DMACR[15:8]
DMACR1, DMACR[7:0]
Description
DMA transfer counter byte 4 (MSB)
DMA transfer counter byte 3
DMA transfer counter byte 2
DMA transfer counter byte 1 (LSB)
Table 52:
Bit
Symbol
Reset
Bus Reset
Access
Bit
Symbol
DMA Configuration register: bit allocation
15
14
13
12
11
10
9
8
reserved
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
5
reserved
R/W
4
R/W
3
R/W
2
R/W
1
R/W
0
WIDTH
7
6
DIS_
XFER_CNT
0
0
R/W
MODE[1:0]
reserved
Reset
Bus Reset
Access
0
0
0
0
0
0
0
0
0
0
0
0
1
1
R/W
R/W
R/W
R/W
R/W
R/W
R/W
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