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參數(shù)資料
型號(hào): ISP1562BE
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Hi-Speed Universal Serial Bus PCI Host Controller
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP100
封裝: 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-407-1, LQFP-100
文件頁數(shù): 44/98頁
文件大小: 442K
代理商: ISP1562BE
9397 750 14223
Koninklijke Philips Electronics N.V. 2005. All rights reserved.
Product data sheet
Rev. 01 — 14 July 2005
44 of 98
Philips Semiconductors
ISP1562
USB PCI Host Controller
11.1.7
HcHCCA register
The HcHCCA register contains the physical address of the Host Controller
Communication Area (HCCA). The bit allocation is given in
Table 54
. The HCD
determines the alignment restrictions by writing all 1s to HcHCCA and reading the content
of HcHCCA. The alignment is evaluated by examining the number of zeroes in the lower
order bits. The minimum alignment is 256 B; therefore, bits 0 through 7 will always return
logic 0 when read. This area is used to hold the control structures and the interrupt table
that are accessed by both the Host Controller and the HCD.
[1]
The reserved bits should always be written with the reset value.
11.1.8
HcPeriodCurrentED register
The HcPeriodCurrentED register contains the physical address of the current isochronous
or interrupt ED.
Table 56
shows the bit allocation of the register.
Table 54:
Address: Value read from func0 or func1 of address 10h + 18h
Bit
31
Symbol
Reset
0
Access
R/W
Bit
23
Symbol
Reset
0
Access
R/W
Bit
15
Symbol
Reset
0
Access
R/W
Bit
7
Symbol
Reset
0
Access
R/W
HcHCCA - Host Controller Communication Area register bit allocation
30
29
28
27
26
25
24
HCCA[23:16]
0
R/W
20
HCCA[15:8]
0
R/W
12
HCCA[7:0]
0
R/W
4
reserved
[1]
0
R/W
0
0
0
0
0
0
R/W
22
R/W
21
R/W
19
R/W
18
R/W
17
R/W
16
0
0
0
0
0
0
R/W
14
R/W
13
R/W
11
R/W
10
R/W
9
R/W
8
0
0
0
0
0
0
R/W
6
R/W
5
R/W
3
R/W
2
R/W
1
R/W
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
Table 55:
Address: Value read from func0 or func1 of address 10h + 18h
Bit
Symbol
Description
31 to 8
HCCA[23:0]
Host Controller Communication Area Base Address
: This is the
base address of the HCCA.
7 to 0
reserved
-
HcHCCA - Host Controller Communication Area register bit description
Table 56:
Address: Value read from func0 or func1 of address 10h + 1Ch
Bit
31
Symbol
Reset
0
Access
R
HcPeriodCurrentED - Host Controller Period Current Endpoint Descriptor register bit allocation
30
29
28
27
26
25
24
PCED[27:20]
0
R
0
R
0
R
0
R
0
R
0
R
0
R
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