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: 76/103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
74 of 103
NXP Semiconductors
ISP1561
HS USB PCI Host Controller
11.4.3 USBINTR register (address: content of the base address register + 14h)
The USB Interrupt Enable (USBINTR) register enables and disables reporting of the
corresponding interrupt to the software. When a bit is set and the corresponding interrupt
is active, an interrupt is generated to the host. Interrupt sources that are disabled in this
register still appear in the USBSTS to allow the software to poll for events. The USBSTS
register bit allocation is give in Table 107.
Table 107. USBINTR register: bit allocation
Bit
31
30
29
28
27
26
25
24
Symbol
reserved
Reset
00000000
Access
--------
Bit
23
22
21
20
19
18
17
16
Symbol
reserved
Reset
00000000
Access
--------
Bit
15
14
13
12
11
10
9
8
Symbol
reserved
Reset
00000000
Access
--------
Bit
7
6
5
4
3
2
1
0
Symbol
reserved
IAAE
HSEE
FLRE
PCIE
USBERR
INTE
USBINTE
Reset
00000000
Access
-
R/W
Table 108. USBINTR register: bit description
Bit
Symbol
Description
31 to 6
-
reserved
5
IAAE
Interrupt on Asynchronous Advance Enable: When this bit and the
IAA (Interrupt on Asynchronous Advance) bit in the USBSTS register
are set, the Host Controller issues an interrupt at the next interrupt
threshold. The interrupt is acknowledged by software clearing bit IAA.
4
HSEE
Host System Error Enable: When this bit and the Host System Error
Status bit in the USBSTS register are set, the Host Controller issues
an interrupt. The interrupt is acknowledged by software clearing the
HSE (Host System Error) bit.
3
FLRE
Frame List Rollover Enable: When this bit and the FLR (Frame List
Rollover) bit in the USBSTS register are set, the Host Controller
issues an interrupt. The interrupt is acknowledged by software
clearing the FLR (Frame List Rollover) bit.
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