73S1209F-44IM/F Maxim Integrated Products, 73S1209F-44IM/F Datasheet - Page 43

• Manufacturer Part Number: 73S1209F-44IM/F
• Description: IC SMART CARD READER 44-QFN
• Manufacturer: Maxim Integrated Products

Specifications of 73S1209F-44IM/F

• Core Processor: 80515
• Core Size: 8-Bit
• Speed: 24MHz
• Connectivity: I²C, SmartCard, UART/USART
• Peripherals: LED, POR, WDT
• Number Of I /o: 9
• Program Memory Size: 32KB (32K x 8)
• Program Memory Type: FLASH
• Ram Size: 2K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: *
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

UG_12xxF_016
The USB interface contains four endpoints, which are defined as follows:
1. Endpoint 0 for the control transfer
2. Endpoint 1 IN for the Bulk transfer
3. Endpoint 1 OUT for the Bulk transfer
4. Endpoint 2 IN for the interrupt transfer
The Low-level API handles all Endpoint 0 (control endpoint) communications; thus PC driver enumeration
takes place during the device reset time and is transparent to an application. An application can be
written to monitor this reset signal to determine when it can start sending Endpoint 1 IN and/or Endpoint
2 IN packets to the host or to expect Endpoint 1 OUT packets from the host. (References to
transmission direction (IN/OUT) are relative to the host.)
USB_Init()
This function will activate the USB interface and ALL Endpoints will be ACTIVE. Endpoint 0 gets device
descriptor requests and will return the device descriptor. Endpoint 0 gets configuration descriptor
Rev. 1.50
Purpose
Synopsis
Parameters
Return Codes None.
Configure the USB interface during the reset procedure. The descriptors (device,
configuration, endpoint, interface and string) used in future enumeration requests are
configured. When leaving this function, the USB interface is ready to answer any
enumeration request.
Void USB_Init (
struct USB_Init_t
{
};
The Device, Config, CCID, Strings and LangID structures are described at the end of
this function description.
pUSB: Input parameter
Specifies the Device, Configuration, Endpoints, Interfaces and String Descriptors
defining the USB interface.
pLangID: Input parameter
Specifies the Language ID codes String Descriptor.
pRESET: Input parameter
Specifies a pointer to the function to call when RESET signaling has occurred on the
USB bus.
pSUSPEND: Input parameter
Specifies a pointer to the function to call when SUSPEND signaling has occurred on
the USB bus.
pRESUME: Input parameter
Specifies a pointer to the function to call when RESUME signaling has occurred on
the USB bus.
IN struct USB_Init_t *pUSB,
IN struct USB_LangID_t *pLangID,
IN void (*pRESET) (),
IN void (*pSUSPEND) (),
IN void (*pRESUME) () );
struct USB_Device_t
struct USB_Config_t
struct USB_CCID_t
struct USB_Strings_t
Device;
Config;
CCID;
Strings;
73S12xxF Software User Guide
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