MC141555P1 Freescale Semiconductor, Inc, MC141555P1 Datasheet

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MC141555P1

Manufacturer Part Number
MC141555P1
Description
Manufacturer
Freescale Semiconductor, Inc
Datasheet
MOTOROLA
SEMICONDUCTOR TECHICAL DATA
Product Preview
USB Hub Controller
CMOS
Specification Rev 1.0. This device is used to expand the USB ports of your PC
system while needed. Because of its self-contained and bus-powered/self-
powered capability, it can hide the complexity from the user and be flexibly
placed anywhere, such as monitor, keyboard, motherboard, Hub-box, etc. The
MC141555 consists of Serial Interface Engine (SIE), Hub Repeater, and Hub
Controller, supporting one upstream port and up to five downstream ports.
ported by automatically detecting which data line (D+ or D-) is pulled high
whenever downstream devices are connected to the bus or at power-up.
MC141555 is powered by an external 5 volt supply and capable of deliver
500mA current to each downstream port. Power management for all down-
stream ports supports power-switching and overcurrent detection with Individ-
ual or Ganged control; a self-powered MC141555 supports Individual control
only, but bus-powered MC141555 supports either Individual or Ganged control.
When Ganged control, PWRSW1 and OVR1 are dedicated for power manage-
ment.
General Characteristics
© Motorola, Inc. 1998
Hub
This document contains information on a new product. Specifications and information herein are subject to change without notice.
This device is a self-contained USB Hub which complies with USB Hub
Both Low Speed Mode (1.5Mbps) and Full Speed Mode (12Mbps) are sup-
MC141555 Hub can be Self Powered or Bus Powered. When self-powered,
Self-contained Hub Includes Serial Interface Engine (SIE), Hub Repeater
and Hub Controller
Universal Serial Bus (USB) Version 1.0 Compliant
Self-powered or Bus-powered
Individual/Ganged Downstream Port Power Switching
Individual/Ganged Downstream Port Overcurrent Detection
All Downstream Ports Support Full Speed and Low Speed Operation
Suspend and Resume Operations
Host Reset Operation
28 DIP Package
Crystal Input 24MHz
Internal 3.3Volt Regulator
Single 5Volt Power Supply
Low-power CMOS Technology
Features Highlight
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
REV 3.0
03/98
VDD3CAP
PWRSW2
PWRSW1
ORDERING INFORMATION
OSC1
OSC2
OVR2
OVR1
VDD
MC141555P1
VSS
DP0
DM0
DP1
DM1
PL
28 1
MC141555
PLASTIC PACKAGE
PIN ASSIGNMENT
12
13
14
10
11
1
2
3
4
5
6
7
8
9
CASE 655
P SUFFIX
15
16
Order this document
17
Plastic Dip
28
27
26
25
24
23
22
21
20
19
18
PWRSW5
OVR4
OVR3
DM4
DP4
PWRSW4
PWRSW3
DM2
DM5/SEL0
DP5/SEL1
OVR5/GANG
DM3
DP3
DP2
by MC141555

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MC141555P1 Summary of contents

Page 1

... This document contains information on a new product. Specifications and information herein are subject to change without notice. © Motorola, Inc. 1998 For More Information On This Product, REV 3.0 03/98 Go to: www.freescale.com Order this document by MC141555 MC141555 SUFFIX PLASTIC PACKAGE CASE 655 ORDERING INFORMATION MC141555P1 Plastic Dip PIN ASSIGNMENT VDD DM5/SEL0 1 28 DP5/SEL1 27 OSC1 OSC2 ...

Page 2

... Doubler 3 OSC2 Power Supply & 3. Regulator 3CAP 6 DP0 Root Port 7 DM0 MC141555 2 Freescale Semiconductor, Inc. Figure 1. BLOCK DIAGRAM Serial Interface Engine (SIE) Frame Counter (1ms) Repeater 3.3 Volts For More Information On This Product, Go to: www.freescale.com 11 DP1 12 DM1 Downstream 10 PORT 1 PWRSW1 9 OVR1 15 ...

Page 3

... Freescale Semiconductor, Inc. ABSOLUTE MAXIMUM RATINGS Voltage Referenced Symbol Characteristic V DD Supply Voltage V in Input Voltage Id Current Drain per Pin Excluding V DD and Operating Temperature Range T stg Storage Temperature Range NOTE: Maximum Ratings are those values beyond which damage to the device may occur. ...

Page 4

... Freescale Semiconductor, Inc. DC CHARACTERISTICS DD(A) = 5.0 V Symbol Parameter V BUS Powered (Host or Hub) Port V BUS Bus-powered Hub Port V OH High Level Output Voltage V OL Low Level Output Voltage Digital Input Voltage V IL Logic Low Logic High High-Z Leakage Current (output pins Input Current ...

Page 5

... Freescale Semiconductor, Inc. FULL SPEED OPERATING HUB ELECTRICAL CHARACTERISTICS Symbol Parameter Hub Differential Data Delay t HDD1 (with cable) (without cable) t HDD2 Hub Differential Driver Jitter (including cable) t HDJ1 To Next Transition For Paired Transitions t HDJ2 t SOP Data Bit Width Distortion After SOP ...

Page 6

... Freescale Semiconductor, Inc. PIN DESCRIPTION V DD (Pin 1) This is the +5V power pin of the chip. OSC1 (Pin 2), OSC2 (Pin 3) The OSC1 and OSC2 pins are the connections for the on- chip oscillator. The crystal frequency is 24MHz . OSC1 may be driven by an external oscillator if an external crystal circuit is not used ...

Page 7

... Freescale Semiconductor, Inc. SYSTEM DESCRIPTION MC141555 is booted up from the Power-On Reset which will initialize all the internal hardware circuitry and reset the program counter of the internal processor. During Power-On Reset, MC141555 must be set to the desired configuration by the input states of the pins, OVR5/GANG, PWRSW5, DP5/SEL1 and DM5/SEL0 ...

Page 8

... Freescale Semiconductor, Inc. DESCRIPTOR The Hub Controller supports the following standard USB descriptors and one Hub specific descriptor. Table2. Device Descriptor Offset Field 0 bLength 1 bDescriptorType 2 bcdUSB 4 bDeviceClass 5 bDeviceSubClass 6 bDeviceProtocol 7 wMaxPacketSize0 8 idVendor 10 idProduct 12 bcdDevice 14 iManufacturer 15 iProduct 16 iSerialNumber 17 bNumConfigurations Table 3. Configuration Descriptor Offset ...

Page 9

... Freescale Semiconductor, Inc. Table 4. Interface Descriptor Offset Field 0 bLength 1 bDescriptorType 2 bInterfaceNumber 3 bAlternateSetting 4 bNumEndpoints 5 bInterfaceClass 6 bInterfaceSubClass 7 bInterfaceProtocol 8 iInterface Table 5. Endpoint Descriptor Offset Field 0 bLength 1 bDescriptorType 2 bEndpointAddress 3 bmAttributes 4 wMaxPacketSize 6 bInterval Table 6. Hub Descriptor Offset Field 0 bLength 1 bDescriptorType 2 bNbrPorts 3 wHubCharacteristics 5 bPwrOn2PwrGood 6 bHubContrCurrent MOTOROLA For More Information On This Product, ...

Page 10

... Freescale Semiconductor, Inc. Offset Field 7 DeviceRemovable 8 PortPwrCtrlMask STATUS CHANGE REGISTER The additional endpoint 1 of the Hub Controller supports interrupt transfer which reports the Hub and Port Status Change Register, as shown in following table. This register contains only one byte. Table 7. Status Change Register ...

Page 11

... Freescale Semiconductor, Inc. Table 8. Standard Requests bmRequestType bRequest 00000000b 01h (device) Clear_Feature 00000001b (interface) 00000010b (endpoint) 10000000b 08h Get_Configuration 10000000b 06h Get_Descriptor 10000001b 0Ah Get_Interface 10000000b 00h (device) Get_Status 10000001b (interface) 10000010b (endpoint) 00000000b 05h Set_Address 00000000b 09h Set_Configuration 00000000b 07h ...

Page 12

... Freescale Semiconductor, Inc. Table 9. Hub Class-specific Request bmRequestType bRequest 00100000b 01h ClearHubFeature Clear_Feature C_HubLocalPower C_HubOverCurrent 00100011b 01h ClearPortFeature Clear_Feature Port_Connection Port_Enable Port_Suspend Port_Over_Current Port_Reset Port_Power Port_Low_Speed C_Port_Connection C_Port_Enable C_Port_Suspend C_PortOverCurrent C_Port_Reset 10100011b 02h GetBusState Get_State 10100000b 06h GetHubDescriptor Get_Descriptor 10100000b 00h ...

Page 13

... Freescale Semiconductor, Inc. bmRequestType bRequest 00100000b 07h SetHubDescriptor Set_Descriptor 00100000b 03h SetHubFeature Set_Feature C_HubLocalPower C_HubOverCurrent 00100011b 03h SetPortFeature Set_Feature Port_Connection Port_Enable Port_Suspend Port_Over_Current Port_Reset Port_Power Port_Low_Speed C_Port_Connection C_Port_Enable C_Port_Suspend C_PortOverCurrent C_Port_Reset MOTOROLA For More Information On This Product, wValue wIndex wLength xxxxh ...

Page 14

... Freescale Semiconductor, Inc. APPLICATION DIAGRAM (Mode Selection) Table 10. MODE SELECTION Application Mode Monitor Self-Powered & Individual Control Self-Powered & Individual Control Hub Box Bus-Powered & Individual Control Bus-Powered & Ganged Control V BUS Upstream device 1.5Kohm 10 uF Downstream device MC141555 14 DP5/SEL1 DM5/SEL0 PWRSW5 OVR5/GANG ...

Page 15

... Freescale Semiconductor, Inc. APPLICATION DIAGRAM (downstream port 15Kohm 15K ohm V BUS GND MOTOROLA For More Information On This Product, 10ohm 10ohm ferrite bead ferrite bead + + 120UFuF 0.01uF - - ferrite bead Go to: www.freescale.com MC141555 (at MC141555) V BUS (MC141555) GND (MC141555) MC141555 15 ...

Page 16

... Freescale Semiconductor, Inc. APPLICATION DIAGRAM (Pull-high circuit of upstream port) Pull-high CKT 1.5 Kohm DP0 DM0 DP0 (upstream device) 10uF MC141555 16 VDD3CAP V BUS 10ohm 10ohm 2N3906 + 20Kohm - 61Kohm 390Kohm 2N3904 20Kohm For More Information On This Product, Go to: www.freescale.com DP0 ( at MC141555) DM0 (at MC141555) ...

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