參數(shù)資料
型號: ISP1181B
廠商: NXP Semiconductors N.V.
英文描述: Full-speed Universal Serial Bus peripheral controller
中文描述: 全速通用串行總線外設(shè)控制器
文件頁數(shù): 27/70頁
文件大?。?/td> 341K
代理商: ISP1181B
Philips Semiconductors
ISP1181B
Full-speed USB peripheral controller
Product data
Rev. 02 — 07 December 2004
27 of 70
9397 750 13958
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
12.1.3
Write/Read Mode Register
This command is used to access the ISP1181B Mode Register, which consists of
1 byte (bit allocation: see
Table 18
). In 16-bit bus mode the upper byte is ignored.
The Mode Register controls the DMA bus width, resume and suspend modes,
interrupt activity and SoftConnect operation. It can be used to enable debug mode,
where all errors and Not Acknowledge (NAK) conditions will generate an interrupt.
Code (Hex): B8/B9 —
write/read Mode Register
Transaction —
write/read 1 byte
[1]
Unchanged by a bus reset.
Table 17:
Bit
7
6 to 0
Address Register: bit description
Symbol
Description
DEVEN
A logic 1 enables the device.
DEVADR[6:0]
This field specifies the USB device address.
Table 18:
Bit
Symbol
Reset
Access
Mode Register: bit allocation
7
DMAWD
0
[1]
R/W
6
5
4
3
2
1
0
reserved
0
R/W
GOSUSP
0
R/W
reserved
0
R/W
INTENA
0
[1]
R/W
DBGMOD
0
[1]
R/W
reserved
0
[1]
R/W
SOFTCT
0
[1]
R/W
Table 19:
Bit
7
Mode Register: bit description
Symbol
DMAWD
Description
A logic 1 selects 16-bit DMA bus width (bus configuration modes
0 and 2). A logic 0 selects 8-bit DMA bus width.
Bus reset value: unchanged.
reserved
Writing a logic 1 followed by a logic 0 will activate ‘suspend’
mode.
reserved
A logic 1 enables all interrupts. Bus reset value: unchanged.
A logic 1 enables debug mode. where all NAKs and errors will
generate an interrupt. A logic 0 selects normal operation, where
interrupts are generated on every ACK (bulk endpoints) or after
every data transfer (isochronous endpoints).
Bus reset value: unchanged.
reserved
A logic 1 enables SoftConnect (see
Section 7.4
). This bit is
ignored if EXTPUL = 1 in the Hardware Configuration Register
(see
Table 20
). Bus reset value: unchanged.
6
5
-
GOSUSP
4
3
2
-
INTENA
DBGMOD
1
0
-
SOFTCT
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ISP1181BBS,557 功能描述:USB 接口集成電路 DO NOT USE ORDER -S OR -T PART RoHS:否 制造商:Cypress Semiconductor 產(chǎn)品:USB 2.0 數(shù)據(jù)速率: 接口類型:SPI 工作電源電壓:3.15 V to 3.45 V 工作電源電流: 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WLCSP-20
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