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: 26/103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
29 of 103
NXP Semiconductors
ISP1561
HS USB PCI Host Controller
8.2.3.6
Data register (address: value read from address 34h + 7h)
The Data register is an optional, 1-byte register that provides a mechanism for the
function to report state dependent operating data, such as power consumed or heat
dissipated. Table 41 shows the bit description of the register.
Table 40.
PCI bus power and clock control
Originating device’s
bridge PM state
Secondary bus
PM state
Resultant actions by bridge (either direct or
indirect)
D0
B0
none
D1
B1
none
D2
B2
clock stopped on secondary bus
D3hot
B2, B3
clock stopped and VCC removed from secondary bus
(B3 only); for denition of B2_B3#, see Table 39
D3cold
B3
none
Table 41.
Data register: bit description
Bit
Symbol
Access
Value
Description
7 to 0
DATA[7:0]
R
00h
DATA: This register is used to report the state dependent data requested by
the D_S (Data Select) eld. The value of this register is scaled by the value
reported by the DS (Data Scale) eld.
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