73S1209F-44IM/F Maxim Integrated Products, 73S1209F-44IM/F Datasheet - Page 41

• 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
Serial_CTx()
After calling this API, an application can make sure all bytes were transmitted by checking that
Serial_TxLen()
Serial_TxLen()
Serial_TxByte ()
This function performs similarly to Serial_CTx() ( U08 &cbyte, 1) but it has much less overhead. Use this
API when performance optimization is required yet only one byte can be sent at a time.
Serial_Rx()
Rev. 1.50
Return Codes
Purpose
Synopsis
Parameters
Return Value
Purpose
Synopsis
Parameters
Return Value
Purpose
Synopsis
Parameters
Return Codes none.
Purpose
Synopsis
Parameters
returns a 0.
Len: Input parameter.
Specifies the current number of bytes to be sent.
S_PENDING,
Where return code SERIAL_RC is defined as: Enum SERIAL_RC.
Put bytes into the transmit buffer and start sending. Prior to calling this function,
Serial_Tx()
Unsigned Integer Serial_CTx ( U08x xdata *buffer, U16 len )
buffer: Input parameter
Specifies a pointer to the data buffer containing the data to send to the PC UART.
len: Input parameter.
Specifies the current number of bytes to be sent.
Unsigned integer specifying the number of bytes sent thus far.
Number of bytes transmitted thus far.
Unsigned integer Serial_ TxLen ( void )
none.
Unsigned integer specifying the number of bytes left in the Tx buffer, i.e. the
remaining bytes to be sent.
Send a quick byte out.
void Serial_TxByte ( U08 cbyte )
cbyte: Input parameter
Byte to put at the end of the Tx buffer to be sent out quickly.
Setup receive buffer and start receiving. Always call this function after
make sure the receive buffer is available.
enum SERIAL_RC data *Serial_Rx ( U08x xdata *buffer, U16 len )
buffer: Input parameter
Specifies a pointer to the data buffer to store the data received from the PC UART.
S_EMPTY
must be call to setup the Tx buffer.
Successful transmission.
Successful transmission thus far but not yet finished.
73S12xxF Software User Guide
Serial_Init()
41
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