73S1209F-44IM/F Maxim Integrated Products, 73S1209F-44IM/F Datasheet - Page 70

• 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
If the passcode has changed 8 times prior to entering Mode 2, it will be disabled since no more passcode
changes are allowed. Since this mode is controlled by firmware, it can be reset/re-initialized by using the
ICE to reprogram the Flash.
1
reload the Flash. If the new program has the FlCtl SFR security mode bit (bit 6) set, the ICE will continue
to be disabled (this is the case for all firmware with 'BL' in the filename).
2
order to completely protect the Flash, enable Mode 2 which will disable Passcode and Boot Loader
changes.
SETSecurity ()
SECStatus ()
70
PassCode Change
Program Space Visible via the ICE
Flash Programmable via ICE
Flash Program via Boot Loader
To reprogram the Flash using the ICE, hit the Erase button via the ICE, hit Reset on the EVB, then
The Passcode and Boot Loader reside on the first page of Flash, which is protected by Mode 1. In
Purpose
Synopsis
Parameters
Return Codes None.
Purpose
Synopsis
Parameters
Return Codes MODE0 = BIT0 (0x01) – returned if the part is already in MODE 0.
Action
Set the hardware security to Mode 0 or Mode 1. Care must be taken as once this
API is finished, the action is not reversible.
void SETSecurity ( U08 Mode )
Mode: Input parameter
MODE0 – This mode only works when the Flash Control SFR (0xB2 bit 6) is set.
LAPI-MBL.lib was built with this SFR already setup for this mode.
MODE1 – The security bit (JP15 on the 1215 EVB) must be set high in order to set
this mode.
The current hardware security status of the part. This function only returns the
hardware security status (MODE 0 or MODE 1). Since Mode 2 is a
firmware/application level control, it will not be reported.
U08 SECStatus ( void )
None.
MODE1 = BIT1 (0x02) – returned if the part is already in MODE 1.
0x00 – returned if no security mode setup has been performed on the part.
Table 5: Security Mode Actions Allowed
Flctl SFR bit 6:
Set - No
Not Set - Yes
Mode 0
Yes
Yes
No
1
Mode 1
Yes
Yes
No
No
2
2
UG_12xxF_016
Mode 2
Yes
Yes
No
No
Rev. 1.50