参数资料
型号: ISP1561BM,557
厂商: ST-ERICSSON
元件分类: 总线控制器
英文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP128
封装: 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-420-1, LQFP-128
文件页数: 47/103页
文件大小: 457K
代理商: ISP1561BM,557
ISP1561_2
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 — 5 March 2007
48 of 103
NXP Semiconductors
ISP1561
HS USB PCI Host Controller
11.1.12 HcBulkCurrentED register (address: content of the base address register +
2Ch)
This register contains the physical address of the current endpoint of the bulk list.
Endpoints are ordered according to their insertion to the list because the bulk list must be
served in a round-robin fashion. The bit allocation is given in Table 65.
Bit
23
22
21
20
19
18
17
16
Symbol
BHED[19:12]
Reset
00000000
Access
R/W
Bit
15
14
13
12
11
10
9
8
Symbol
BHED[11:4]
Reset
00000000
Access
R/W
Bit
7
6
5
4
3
2
1
0
Symbol
BHED[3:0]
reserved
Reset
00000000
Access
R/W
----
Table 64.
HcBulkHeadED register: bit description
Bit
Symbol
Description
31 to 4
BHED[27:0]
Bulk Head ED: The Host Controller traverses the bulk list starting
with the HcBulkHeadED pointer. The content is loaded from HCCA
during the initialization of the Host Controller.
3 to 0
-
reserved
Table 65.
HcBulkCurrentED register: bit allocation
Bit
31
30
29
28
27
26
25
24
Symbol
BCED[27:20]
Reset
00000000
Access
R/W
Bit
23
22
21
20
19
18
17
16
Symbol
BCED[19:12]
Reset
00000000
Access
R/W
Bit
15
14
13
12
11
10
9
8
Symbol
BCED[11:4]
Reset
00000000
Access
R/W
Bit
7
6
5
4
3
2
1
0
Symbol
BCED[3:0]
reserved
Reset
00000000
Access
R/W
----
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