UPSD3433EB40U6 STMicroelectronics, UPSD3433EB40U6 Datasheet - Page 258

• Manufacturer Part Number: UPSD3433EB40U6
• Description: MCU 8BIT 8032 128KB FLASH 80TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3433EB40U6

• Core Processor: 8032
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, IrDA, SPI, UART/USART, USB
• Peripherals: LVD, POR, PWM, WDT
• Number Of I /o: 46
• Program Memory Size: 160KB (160K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 3 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• For Use With: 497-5518 - EVAL BOARD RFID READER497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: 497-5660

PSD module
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JTAG security setting
A programmable security bit in the PSD Module protects its contents from unauthorized
viewing and copying. The security bit is set by clicking on the “Additional PSD Settings” box
in the main flow diagram of PSDsoft Express, then choosing to set the security bit. Once a
file with this setting is programmed into a uPSD34xx using JTAG ISP, any further attempts to
communicate with the uPSD34xx using JTAG will be limited. Once secured, the only JTAG
operation allowed is a full-chip erase. No reading or modifying Flash memory or PLD logic is
allowed. Debugging operations to the MCU Module are also not allowed. The only way to
defeat the security bit is to perform a JTAG ISP full-chip erase operation, after which the
device is blank and may be used again. The 8032 on the MCU Module will always have
access to PSM Module memory contents through the 8-bit 8032 data bus connecting the
two die, even while the security bit is set.
Initial delivery state
When delivered from STMicroelectronics, uPSD34xx devices are erased, meaning all Flash
memory and PLD configuration bits are logic '1.' Firmware and PLD logic configuration must
be programmed at least the first time using JTAG ISP. Subsequent programming of Flash
memory may be performed using JTAG ISP, JTAG debugging, or the 8032 may run firmware
to program Flash memory (IAP).
uPSD34xx