參數(shù)資料
型號(hào): ISP1161ABM
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Full-speed Universal Serial Bus single-chip host and device controller
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝: 7 X 7 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-414-1, LQFP-64
文件頁(yè)數(shù): 85/134頁(yè)
文件大?。?/td> 587K
代理商: ISP1161ABM
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Philips Semiconductors
ISP1161A
Full-speed USB single-chip host and device controller
Product data
Rev. 03 — 23 December 2004
85 of 134
9397 750 13962
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
12. DC DMA transfer
Direct Memory Access (DMA) is a method to transfer data from one location to
another in a computer system, without intervention of the Central Processor Unit
(CPU). Many different implementations of DMA exist. The ISP1161A DC supports
two methods:
8237 compatible mode
: based on the DMA subsystem of the IBM personal
computers (PC, AT and all its successors and clones); this architecture uses the
Intel 8237 DMA controller and has separate address spaces for memory and I/O
DACK-only mode
: based on the DMA implementation in some embedded RISC
processors, which has a single address space for both memory and I/O.
ISP1161A’s DC supports DMA transfer for all 14 configurable endpoints (see
Table 66
). Only one endpoint at a time can be selected for DMA transfer. The DMA
operation of ISP1161A’s DC can be interleaved with normal I/O mode access to other
endpoints.
The following features are supported:
Single-cycle or burst transfers (up to 16 bytes per cycle)
Programmable transfer direction (read or write)
Multiple End-Of-Transfer (EOT) sources: external pin, internal conditions,
short/empty packet
Programmable signal levels on pins DREQ2 and EOT.
12.1 Selecting an endpoint for DMA transfer
The target endpoint for DMA access is selected via bits EPDIX[3:0] in the
DcDMAConfiguration register, as shown in
Table 70
. The transfer direction (read or
write) is automatically set by bit EPDIR in the associated ECR, to match the selected
endpoint type (OUT endpoint: read; IN endpoint: write).
Asserting input DACK2 automatically selects the endpoint specified in the
DcDMAConfiguration register, regardless of the current endpoint used for I/O mode
access.
Table 70:
Endpoint selection for DMA transfer
Endpoint
identifier
EPIDX[3:0]
Transfer direction
EPDIR = 0
OUT: read
OUT: read
OUT: read
OUT: read
OUT: read
OUT: read
OUT: read
OUT: read
OUT: read
EPDIR = 1
IN: write
IN: write
IN: write
IN: write
IN: write
IN: write
IN: write
IN: write
IN: write
1
2
3
4
5
6
7
8
9
0010
0011
0100
0101
0110
0111
1000
1001
1010
相關(guān)PDF資料
PDF描述
ISP1161 Full-speed Universal Serial Bus single-chip host and device controller
ISP1161A1 Universal Serial Bus single-chip host and device controller
ISP1161A1BD Universal Serial Bus single-chip host and device controller
ISP1161A1BM Universal Serial Bus single-chip host and device controller
ISP1161BD Full-speed Universal Serial Bus single-chip host and device controller
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ISP1161ABM,518 功能描述:USB 接口集成電路 DO NOT USE ORDER ISP1161A1BM 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
ISP1161ABM,551 功能描述:USB 接口集成電路 DO NOT USE ORDER ISP1161A1BM 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
ISP1161ABM,557 功能描述:USB 接口集成電路 DO NOT USE ORDER ISP1161A1BM 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
ISP1161ABM-S 功能描述:IC USB HOST CTRL FULL-SPD 64LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN(6x6) 包裝:* 其它名稱:Q6396337A
ISP1161ABM-T 功能描述:IC USB HOST CTRL FULL-SPD 64LQFP RoHS:是 類別:集成電路 (IC) >> 接口 - 控制器 系列:- 標(biāo)準(zhǔn)包裝:4,900 系列:- 控制器類型:USB 2.0 控制器 接口:串行 電源電壓:3 V ~ 3.6 V 電流 - 電源:135mA 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:36-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:36-QFN(6x6) 包裝:* 其它名稱:Q6396337A