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參數資料
| 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控制器 |
| 文件頁數： | 61/70頁 |
| 文件大小： | 341K |
| 代理商： | ISP1181B |
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Philips Semiconductors
ISP1181B
Full-speed USB peripheral controller
Product data
Rev. 02 — 07 December 2004
61 of 70
9397 750 13958
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
22.2 Interfacing ISP1181B with an H8S/2357 microcontroller
This section gives a summary of the ISP1181B interface with a H8S/2357 (or
compatible) microcontroller. Aspects discussed are: interrupt handling, address
mapping, DMA and I/O port usage for suspend and remote wake-up control. A typical
interface circuit is shown in
Figure 31
.
22.2.1
Interrupt handling
ISP1181B:
program the Hardware Configuration register to select an active LOW
level for output INT (INTPOL = 0, see
Table 20
)
H8S/2357
: program the IRQ Sense Control Register (ISCRH and ISCRL) to
specify low-level sensing for the IRQ input.
22.2.2
Address mapping in H8S/2357
The H8S/2357 bus controller partitions its 16 Mbyte address space into eight areas
(0 to 7) of 2 Mbyte each. The bus controller will activate one of the outputs CS0 to
CS7 when external address space for the associated area is accessed.
The ISP1181B can be mapped to any address area, allowing easy interfacing when
the ISP1181B is the only peripheral in that area. If in the example circuit for bus
configuration mode 0 (see
Figure 31
) the ISP1181B is mapped to address FFFF08H
(in area 7), output CS7 of the H8S/2357 can be directly connected to input CS of the
ISP1181B.
The external bus specifications, bus width, number of access states and number of
program wait states can be programmed for each address area. The recommended
settings of H8S/2357 for interfacing the ISP1181B are:
8-bit bus in Bus Width Control Register (ABWCR)
enable wait states in Access State Control Register (ASTCR)
1 program wait state in the Wait Control Register (WCRH and WCRL).
22.2.3
Using DMA
The ISP1181B can be configured for several methods of DMA with the H8S/2357 and
other devices. The interface circuit in
Figure 31
shows an example of the ISP1181B
working with the H8S/2357 in single-address DACK-only DMA mode. External
devices are not shown.
For single-address DACK-only mode, firmware must program the following settings:
ISP1181B
:
–
program the DMA Counter register with the total transfer byte count
–
program the Hardware Configuration Register to select active level LOW for
DREQ and DACK
–
select the target endpoint and transfer direction
–
select DACK-only mode and enable DMA transfer.
相關PDF資料 |
PDF描述 |
|---|---|
| ISP1181BBS | Full-speed Universal Serial Bus peripheral controller |
| ISP1181BDGG | Full-speed Universal Serial Bus peripheral controller |
| ISP1181 | Full-speed Universal Serial Bus Interface Device(全速通用串行總線接口器件) |
| ISP1181DGG | INDUCTOR 4.7NH +-.3NH 0402 SMD |
| ISP1183 | Low-power Universal Serial Bus interface device with DMA |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ISP1181BBS | 制造商:NXP Semiconductors 功能描述:IC CONTROLLER USB PERIPHERAL SMD 制造商:ST-Ericsson 功能描述:CONTROLLER USB PERIPHERAL 48HVQFN |
| ISP1181BBS,518 | 功能描述:USB 接口集成電路 USB 1.1 DEVICE RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數據速率: 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| ISP1181BBS,551 | 功能描述:USB 接口集成電路 USB 1.1 DEVICE CONTROLLER RoHS:否 制造商:Cypress Semiconductor 產品:USB 2.0 數據速率: 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| 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 產品:USB 2.0 數據速率: 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 安裝風格:SMD/SMT 封裝 / 箱體:WLCSP-20 |
| ISP1181BBS518 | 制造商:ST-Ericsson 功能描述:CONTROLLER USB PERIPHERAL 48HVQFN |
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