73S1209F-44IM/F Maxim Integrated Products, 73S1209F-44IM/F Datasheet - Page 40

• 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

73S12xxF Software User Guide
After calling
must be called to pass on the receive/transmit buffer pointer, which is used to store Rx and Tx characters,
respectively. For a sample of the Serial API usage, see the Pseudo-CCID application source code.
Serial_Init()
Serial_Tx()
40
Purpose
Synopsis
Parameters
Return Codes None.
Purpose
Synopsis
Parameters
The lower speeds help support Plug & Play.
Serial_Init()
Configure the communication speed, flow control, character parity and number of
stop bits. The serial interrupt service routine is NOT maskable, the interrupt vector is
set internally, so using Set_Event (eSerial, ...) will not have any effect. The baud
rates listed below are available for specific CPU clock speeds only. Review the
API_Struct_12.h for more information.
Bbool Serial_Init (
Speed: Input parameter
This selects the communication speed. Possible values are:
Parity_enb: Input parameter
Specifies if the exchanged characters contain a parity bit (TRUE) or not (FALSE).
parity: Input parameter
Specifies if the characters parity bits must be odd (TRUE) or even (FALSE).
Two_stop_bits: Input parameter
Specifies if the exchanged characters contain two stop bits (TRUE) or one (FALSE).
xon_xoff: Input parameter
Specifies if Xon_Xoff control is on (TRUE) or off (FALSE).
Setup the Tx buffer before sending data to the PC UART. An application should call
this API immediately after calling Serial_Init().
enum SERIAL_RC data *Serial_Tx ( U08x xdata *buffer, U16 len )
buffer: Input parameter
Specifies a pointer to the data buffer containing data to send to the PC UART.
IN enum SERIAL_SPD speed,
IN Boolean parity_en,
IN Boolean parity,
IN Boolean two_stop_bits,
IN Boolean xon_xoff )
_RATE_600,
_RATE_1200,
_RATE_2400,
_RATE_4800,
_RATE_9600,
_RATE_14400,
_RATE_19200,
_RATE_28800,
_RATE_38400,
_RATE_57600,
_RATE_115200,
_RATE_125000,
_RATE_250000,
_RATE_375000
and prior to receiving data from the RS232 interface,
0
1
2
3
4
5
6
7
8
9
10
11
12
13
Serial_Rx()
UG_12xxF_016
and
Serial_Tx()
Rev. 1.50