參數(shù)資料
型號(hào)： ISP1561BM,557
廠商： NXP SEMICONDUCTORS
元件分類： 總線控制器
英文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQFP128
封裝： 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-420-1, LQFP-128
文件頁(yè)數(shù)： 14/103頁(yè)
文件大?。?/td> 457K
代理商： ISP1561BM,557
ISP1561_2
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 — 5 March 2007
18 of 103
NXP Semiconductors
ISP1561
HS USB PCI Host Controller
8.2.1.5
Revision ID register (address: 08h)
This 1-byte read-only register indicates a device-specic revision identier. The value is
chosen by the vendor. This eld is a vendor-dened extension of the device ID. The
Revision ID register bit description is given in Table 10.
8.2.1.6
Class Code register (address: 09h)
Class Code is a 24-bit read-only register used to identify the generic function of the
device, and in some cases, a specic register-level programming interface. Table 11
shows the bit allocation of the register.
The Class Code register is divided into three byte-size elds. The upper byte is a base
class code that broadly classies the type of function the device performs. The middle
byte is a sub-class code that identies more specically the function of the device. The
lower byte identies a specic register-level programming interface, if any, so that
device-independent software can interact with the device.
[1]
X is 10h for OHCI1 and OHCI2; X is 20h for EHCI.
Table 10.
Revision ID register: bit description
Bit
Symbol
Access
Value
Description
7 to 0
REVID[7:0]
R
30h
Revision ID: This byte species the design revision number of functions.
Table 11.
Class Code register: bit allocation
Bit
23
22
21
20
19
18
17
16
Symbol
BCC[7:0]
Reset
0Ch
Access
R
Bit
15
14
13
12
11
10
9
8
Symbol
SCC[7:0]
Reset
03h
Access
R
Bit
7
6
5
4
3
2
1
0
Symbol
RLPI[7:0]
Reset
Access
R
Table 12.
Class Code register: bit description
Bit
Symbol
Description
23 to 16
BCC[7:0]
Base Class Code: 0Ch is the base class code assigned to this byte,
and it implies a serial bus controller.
15 to 8
SCC[7:0]
Sub-Class Code: 03h is the sub-class code assigned to this byte, and
it implies the USB Host Controller.
7 to 0
RLPI[7:0]
Register-Level Programming Interface: 10h is the programming
interface code assigned to OHCI, which is USB 1.1 specication
compliant. 20h is the programming interface code assigned to EHCI,
which is USB 2.0 specication compliant.
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