參數(shù)資料
型號(hào): ISP1581BD
廠商: NXP SEMICONDUCTORS
元件分類: 總線控制器
英文描述: Universal Serial Bus 2.0 high-speed interface device
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQFP64
封裝: 10 X 10 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-314-2, LQFP-64
文件頁(yè)數(shù): 11/73頁(yè)
文件大?。?/td> 1819K
代理商: ISP1581BD
Philips Semiconductors
ISP1581
USB 2.0 HS interface device
Objective specification
Rev. 02 — 23 October 2000
11 of 73
9397 750 07648
Philips Electronics N.V. 2000. All rights reserved.
8.
Modes of operation
The ISP1581 has two bus configuration modes, selected via pin BUS_CONF/DA0 at
power-up:
Split Bus mode (BUS_CONF = 0):
8-bit multiplexed address/data bus and
separate 8-bit/16-bit DMA bus
Generic Processor mode (BUS_CONF = 1)
; separate 8-bit address and 16-bit
data bus
Details of the bus configurations for each mode are given in
Table 3
. Typical interface
circuits for each mode are given in
Section 13 “Application information”
.
9.
Register descriptions
Table 3:
BUS_CONF
Bus configuration modes
PIO width
DMA width
Description
DMAWD = 0 DMAWD = 1
D[7:0]
0
AD[7:0]
D[15:0]
Split Bus mode:
multiplexed address/data on pins AD[7:0];
separate 8/16-bit DMA bus on pins DATA[15:0]
Generic Processor mode:
separate 8-bit address on pins
AD[7:0]; 16-bit data (PIO and DMA) on pins DATA[15:0]
1
A[7:0]
D[15:0]
D[7:0]
D[15:0]
Table 4:
Name
Register summary
Destination
Address
(Hex)
Description
Size
(bytes)
Initialization registers
Address
Mode
device
device
00
0C
USB device address + enable
power-down options, global interrupt
enable, SoftConnect
interrupt sources, trigger mode, output
polarity
interrupt source enabling
see
DMA registers
see
DMA registers
1
1
Interrupt Configuration
device
10
1
Interrupt Enable
DMA Configuration
DMA Hardware
Data flow registers
Endpoint Index
Control Function
Data Port
Buffer Length
Endpoint MaxPacketSize
Endpoint Type
device
DMA controller
DMA controller
14
38
3C
4
2
1
endpoints
endpoint
endpoint
endpoint
endpoint
endpoint
2C
28
20
1C
04
08
endpoint selection, data flow direction
endpoint buffer management
data access to endpoint FIFO
packet size counter
maximum packet size
selects endpoint type: control,
isochronous, bulk or interrupt
short packet received on OUT endpoint
1
1
2
2
2
2
Short Packet
endpoint
24
2
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