SAK-XC864L-1FRI 5V AA Infineon Technologies, SAK-XC864L-1FRI 5V AA Datasheet - Page 17

• Manufacturer Part Number: SAK-XC864L-1FRI 5V AA
• Description: IC MCU 8BIT 4KB FLASH 20TSSOP
• Manufacturer: Infineon Technologies
• Series: XC8xxr

Specifications of SAK-XC864L-1FRI 5V AA

• Core Processor: XC800
• Core Size: 8-Bit
• Speed: 86MHz
• Connectivity: LIN, SSI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 9
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 20-TSSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

3.2.1
The XC864 memory protection strategy includes:
• Read-out protection: The user is able to protect the contents in the Flash memory from
• Flash program and erase protection: The Flash memory in all devices can be enabled
• Block external access and allow only boot in User Mode: Disable BSL and OCDS
Flash memory protection modes provided are:
• Mode 0: Protect against accidental erase and block external access.
• Mode 1: Read, program and erase protection are enabled, and block external access.
Flash protection is enabled by installing the user password via BSL mode 6. The user
setting of password for selection of each protection mode and the restrictions imposed
are summarized in
used for code only. Otherwise if the Flash is used partially for code and partially for data,
then only Flash protection mode 0 is meaningful.
Note: In XC864, the type of Flash protection scheme will affect the entering of BSL Mode
Table 2
Mode
Selection
Flash contents
can be read by
Flash program
Data Sheet
being read
for program and erase protection
modes.
once User Mode is entered.
Memory Protection Strategy
Flash Protection Modes
Table
0
MSB of password = 0
Read instructions in any program
memory
Possible
2. Flash protection mode 1 is meaningful only if the Flash is
13
1
MSB of password = 1
Read instructions in Flash
Not possible
Functional Description
V 1.1, 2009-03
XC864