AT43USB380E-AC Atmel, AT43USB380E-AC Datasheet

AT43USB380E-AC

Manufacturer Part Number

AT43USB380E-AC

Description

IC PROCESSOR USB 2.0 100-TQFP

Manufacturer

Atmel

Series

AVR®r

Datasheets

1.AT43USB380E-AC.pdf (8 pages)

2.AT43USB380E-AC.pdf (4 pages)

Specifications of AT43USB380E-AC

Applications

USB Host/Function Processor

Controller Series

AT43USB

Interface

USB

Number Of I /o

Operating Temperature

0°C ~ 70°C

Mounting Type

Surface Mount

Package / Case

100-TQFP, 100-VQFP

Lead Free Status / RoHS Status

Contains lead / RoHS non-compliant

Voltage - Supply

Core Processor

Program Memory Type

Ram Size

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Quantity

Price

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Part Number:

AT43USB380E-AC

Manufacturer:

Atmel

Quantity:

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Company:

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Part Number:

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Description

The AT43USB380 is a straightforward upgrade of the AT43USB370 Host/Function

Processor to support the USB 2.0 On-The-Go (OTG) specification. It can operate

either as a single-chip Host/Function Processor or if used in conjunction with an exter-

nal Atmel Charge Pump, as a full OTG solution.

The AT43USB380 is functionally equivalent to the AT43USB370 as a Host/Function

Processor and can be used in place of the AT43USB370 in the existing AT43USB370

design with minor hardware modifications. The pinout differences between the

AT43USB370 and the AT43USB380 are due to the inclusion of the on-chip OTG inter-

face in the AT43USB380.

To support OTG functionality, an external Charge Pump has to be connected to the

OTG interface of the AT43USB380, as shown in Figure 1 on page 7. The external

Charge Pump serves in the following two capacities:

1. As a power source to the downstream USB devices.

2. As a signaling interface during the OTG session negotiation upon connection.

From the hardware standpoint, the AT43USB380 is equivalent to the AT43USB370

with the following exceptions:

•

From the standpoint of the firmware development environment, the AT43USB380

shares the same high level APIs and low level fir mware librar ies with the

AT43USB370. Additions to the AT43USB380 firmware suite include:

•

The AT43USB380 share the same debugging tools with the AT43USB370 as well.

During development, the AT43USB380 should be treated as a black box in terms of

On-chip OTG Interface. This hardware block is added to the AT43USB380 to

support the OTG functionality.

DISCHARGE, PUMP, CONTROL, EN, SESS_VLD, SESS_END, SESS_HIGH

and SESS_LOW. This interface is used during an OTG session to determine the

roles of the AT43USB380 and the connected OTG-enabled USB device either as

a host or a function.

8/16/32 Bit Generic Host Processor Interface. The AT43USB380 has a variable

width, generic host processor interface whereas the AT43USB370 supports only

32-bit host interface. The width of the host interface on the AT43USB380 is

determined by firmware configuration.

Simplified System Interface. The GPIOs required in AT43USB370 for

handshaking are no longer required in AT43USB380. The system processor can

write directly to the AT43USB380 registers thus eliminates the need for PROG,

SEL, READY, DONE, MORE, INTR_IN signals. The WAIT_N signal is not needed

either. It is only there for precaution for SYS_CLK synchronization.

Up to 16 GPIO Pins. GPIO pins are multiplexed with the host processor interface.

When the interface to the host processor is 8 or 16 bits, up to 16 of the unused

pins in the host processor interface can be used as GPIO pins. High level APIs

are provided to access these GPIO pins.

High level APIs specific to the OTG support. The number of additional APIs is

less than 10.

Low level OTG firmware embedded in the AT43USB380 hardware that support

Host Negotiation Protocol (HNP) and Session Request Protocol (SRP).

Signals in the OTG interface include ID,

Note: This is a summary document. A complete document

is not available at this time. For more information, please

contact your local Atmel sales office.

On-The-Go

Upgrade of the

AT43USB370

USB 2.0

Full-Speed

Host/Function

Processor

AT43USB380

Upgrade Map

Summary

3420AS–USB–03/04

Related parts for AT43USB380E-AC

AT43USB380E-AC Summary of contents

Page 1

... Processor to support the USB 2.0 On-The-Go (OTG) specification. It can operate either as a single-chip Host/Function Processor or if used in conjunction with an exter- nal Atmel Charge Pump full OTG solution. The AT43USB380 is functionally equivalent to the AT43USB370 as a Host/Function Processor and can be used in place of the AT43USB370 in the existing AT43USB370 design with minor hardware modifications ...

Page 2

AT43USB380 OTG Processor Pin Description AT43USB380 Upgrade Map Summary 2 USB functionality. Communication with the AT43USB380 is achieved through a small set (less than 25) of high level, ANSI C-compliant APIs. The actual USB protocol includ- ing HNP and SRP ...

Page 3

AT43USB380 Upgrade Map Summary Table 1. Pin Description of the AT43USB380 (Continued) Signal Name Dir. Polarity SESS_VLD I SESS_END I SESS_LOW I SESS_HIGH I LOW_CUR O DISCHARGE O Oscillator, Clocks XTAL1 I XTAL2 O LFT I CLK_SEL I RESET_N ...

Page 4

AT43USB380 OTG Processor Pin Assignment AT43USB380 Upgrade Map Summary 4 Table 1. Pin Description of the AT43USB380 (Continued) Signal Name Dir. Polarity Power/Ground Pins VEXT18 O VDD I VSS Pin # Signal ...

Page 5

AT43USB380 Upgrade Map Summary Pin # Signal TP0 32 TP1 33 CLK_SEL 34 VSS 35 XTAL1 36 XTAL2 37 LFT 38 VDD18 39 VDD 40 VSS TP2 44 TP3 45 RPD_EN ...

Page 6

AT43USB380 Upgrade Map Summary 6 Pin # Signal 67 D27/GPIO[11] 68 D26/GPIO]10] 69 D25/GPIO[9] 70 D24/GPIO[8] 71 D23/GPIO[7] 72 D22/GPIO[6] 73 D21/GPIO[5] 74 D20/GPIO[4] 75 VDD 76 VSS 77 D19/GPIO[3] 78 D18/GPIO[2] 79 D17/GPIO[1] 80 D16/GPIO[0] 81 BWIDTH[1] 82 D15 ...

Page 7

USB-OTG Interface Connections for Host Mode RPD_EN AT43USB380 (OTG Interface) DISCHARGE PUMP_EN LOW_CUR EN CPCLK SESS_VLD SESS_END SESS_HIGH SESS_LOW 3.3V 10 kOhm 3420AS–USB–03/04 AT43USB380 Upgrade Map Summary Figure 1. AT43USB380 USB and Charge Pump Connection for Host ...

Page 8

... No licenses to patents or other intellectual property of Atmel are granted by the Company in connection with the sale of Atmel products, expressly or by implication. Atmel’s products are not authorized for use as critical components in life support devices or systems. ...

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