參數(shù)資料
型號: ISP1181
廠商: NXP Semiconductors N.V.
英文描述: Full-speed Universal Serial Bus Interface Device(全速通用串行總線接口器件)
中文描述: 全速通用串行總線接口設(shè)備(全速通用串行總線接口器件)
文件頁數(shù): 9/69頁
文件大?。?/td> 1655K
代理商: ISP1181
Philips Semiconductors
ISP1181
Full-speed USB interface
Objective specification
Rev. 01 — 13 March 2000
9 of 69
9397 750 06896
Philips Electronics N.V. 2000. All rights reserved.
7.7 Voltage regulator
A 5 V to 3.3 V voltage regulator is integrated on-chip to supply the analog transceiver
and internal logic. This voltage is available at pin V
reg(3.3)
to supply an external 1.5 k
pull-up resistor on the D
+
line. Alternatively, the ISP1181 provides SoftConnect
technology via an integrated 1.5 k
pull-up resistor (see
Section 7.4
).
7.8 PLL clock multiplier
A 6 MHz to 48 MHz clock multiplier Phase-Locked Loop (PLL) is integrated on-chip.
This allows for the use of a low-cost 6 MHz crystal, which also minimizes EMI. No
external components are required for the operation of the PLL.
7.9 Parallel I/O (PIO) and Direct Memory Access (DMA) interface
A generic PIO interface is defined for speed and ease-of-use. It also allows direct
interfacing to most microcontrollers. To a microcontroller, the ISP1181 appears as a
memory device with an 8/16-bit data bus and an 1-bit address bus. The ISP1181
supports both multiplexed and non-multiplexed address and data buses.
The ISP1181 can also be configured as a DMA slave device to allow more efficient
data transfer. One of the 14 endpoint FIFOs may directly transfer data to/from the
local shared memory. The DMA interface can be configured independently from the
PIO interface.
8.
Modes of operation
The ISP1181 has four bus configuration modes, selected via pins BUS_CONF1 and
BUSCONF0:
Mode 0
Mode 1
Mode 2
Mode 3
16-bit I/O port shared with 8-bit or 16-bit DMA port
separate 8-bit I/O port and 8-bit DMA port
8-bit I/O port shared with 8-bit or 16-bit DMA port
reserved.
The bus configurations for each of these modes are given in
Table 3
. Typical interface
circuits for each mode are given in
Section 20.1
.
Table 3:
Mode
Bus configuration modes
BUS_CONF[1:0]
PIO width
DMA width
Description
DMAWD = 0
D[7:0];
DMAWD = 1
D[15:0]
0
0
0
D[15:0]
multiplexed address/data on pin AD0;
bus is shared by 16-bit I/O port and 8-bit
or 16-bit DMA port
multiplexed address/data on pin AD0;
bus has separate I/O port (8-bit) and
DMA port (8-bit)
multiplexed address/data on pin AD0;
bus is shared by 8-bit I/O port and 8-bit
or 16-bit DMA port
reserved
1
0
1
D[7:0]
D[15:8]
illegal
2
1
0
D[7:0]
D[7:0]
D[15:0]
3
1
1
reserved
reserved
reserved
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ISP1181A 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Full-speed Universal Serial Bus peripheral controller
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ISP1181ABS,518 功能描述:USB 接口集成電路 USB 1.1 ADV DEVICE 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
ISP1181ABS,551 功能描述:USB 接口集成電路 USB 1.1 ADVANCED DEVICE 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
ISP1181ABS,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