Scanner Interfaces - Epson Stylus SCAN 2000 Service Manual

EPSON Stylus Scan 2000

1.3.2 Scanner interfaces

PARALLEL
1. Specification
Transmission mode 8 bit parallel, IEEE-1284 ECP (Compatibility/Nibble) mode
Synchronization Refer to the IEEE-1284 specification
Handshaking Refer to the IEEE-1284 specification
Packet Refer to the IEEE P1284.4 Standard for Data Delivery and
Logical Channels for IEEE Std. 1284 Interface (Draft D1.50)
Refer to the IEEE 1284.4 specification
Signal level TTL compatible level (IEEE-1284 Level 1 device)
Data trans. timing Refer to the IEEE-1284 specification
2. Connector pin assignments
Refer to the IEEE-1284 specification
USB
Any items not included in this specification shall be in compliance with the Universal Serial
Bus Specification Revision 1.0
o
Configuration - the scanner supports the following configurations
Product Description
Element Description
Full Speed Mode (12Mbit/s)
Class: Vendor-specific
Subclass: Vendor-specific
Protocol: Vendor-specific
Device
Vendor ID: 0x04B8 (Seiko Epson Corp.)
Product ID: 0x0105
Number of possible configurations: 1
Number of interfaces supported by this configuration: 1
Characteristics: Self-powered (Remote wake-up feature not
Configuration
supported)
Max. power consumption from VBUS: 2mA (5V)
No alternate setting
Number of endpoints used by this interface (excluding endpoint 0):2
Interface
Class: Vendor specific
Subclass: Vendor specific
Protocol: Vendor specific
Bulk IN transfer
Max. data transfer size: 64 bytes
Endpoint
Bulk OUT transfer
Max. data transfer size: 64 bytes
Language ID: English, US
String Descriptor 1: iManufacturer "EPSON"
2: iProduct "Scanner Stylus Scan 2000"
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Requests
The scanner must support almost all standard device requests. The scanner does not
support vendor specific requests.
Some requests and descriptors depend on the configuration (endpoint number) of each
USB device. Therefore this specification recommends the configuration where
Endpoint 1 is Bulk IN endpoint and Endpoint 2 is OUT endpoint.
Interfaces
Revision A
21