73S1209F-44IM/F Maxim Integrated Products, 73S1209F-44IM/F Datasheet - Page 68

• 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
Boot()
Once an application calls the Boot function, and the PassCode is validated, control will not be returned.
CheckPassCode ()
68
Application/Host
Configure COM port
@ 115,200 baud,
Read Hex Record
Open Hex File
8N1, Xon/Xoff
Purpose
Synopsis
Parameters
Return Codes FALSE if the PassCode fails validation.
Purpose
Synopsis
Parameters
Return Codes TRUE if the PassCode is validated.
Down
Flash
Load
Start
'P'
Send Record to
LAPI Responds
Invoke the Boot Loader function to start reprogramming of Flash.
void Boot ( U16 PassCode );
PassCode: Input parameter
Specifies the 2-byte passcode.
Validate the PassCode for Security Mode management, PassCode management and
the Boot function.
Bbool CheckPassCode ( U16 PassCode );
PassCode: Input parameter
Specifies the 2-byte passcode.
FALSE if the PassCode doesn’t match with the passcode stored in the Boot Loader
code space.
End of file?
Figure 10: FLASH Download and Programming Process
LAPI
= ?
No
Yes
'F'
Prompt User to
terminate App.
exhausted
Retry
No
Yes
Configure COM port
@ 115,200 baud,
Send 'F' to App/
Send 'P' to App/
with Hex record
Program Flash
8N1, Xon/Xoff
Received hex
record from
LAPI-*.lib
App/Host
Flash
Prog.
Start
Host
Host
Ignore Record
No
No
No
UG_12xxF_016
Jump to new app.
(good CRC)?
Good record
End of File?
Address >
0x01FF
Rev. 1.50
Yes
Yes
Yes