UPSD3433E-40U6 STMicroelectronics, UPSD3433E-40U6 Datasheet - Page 199

• Manufacturer Part Number: UPSD3433E-40U6
• Description: MCU 8BIT 8032 128KB FLASH 80TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3433E-40U6

• 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 READER497-5218 - KIT DEVELOPMENT FOR UPSD3400497-2381 - CABLE PROGRAMMER FLASH LINK
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: 497-4907

UPSD3422, UPSD3433, UPSD3434, UPSD3454
28.2.4
Table 159. HDL statement example generated from PSDsoft express for memory
Figure 64. PSDsoft express memory mapping
EEPROM emulation
EEPROM emulation is needed if it is desired to repeatedly change only a small number of
bytes of data in Flash memory. In this case EEPROM emulation is needed because
although Flash memory can be written byte-by-byte, it must be erased sector-by-sector, it is
not erasable byte-by-byte (unlike EEPROM which is written AND erased byte-by-byte). So
changing one or two bytes in Flash memory typically requires erasing an entire sector each
time only one byte is changed within that sector.
However, two of the 8 Kbyte sectors of Secondary Flash memory may be used to emulate
EEPROM by using a linked-list software technique to create a small data set that is
rs0
csiop
fs0
fs1
fs2
fs3
fs4
fs5
fs6
fs7
csboot0 = ((address ≥ ^h8000) & (address ≤ ^h9FFF));
csboot1 = ((address ≥ ^hA000) & (address ≤ ^hBFFF));
csboot2 = ((address ≥ ^hC000) & (address ≤ ^hDFFF));
csboot3 = ((address ≥ ^hE000) & (address ≤ ^hFFFF));
map
= ((address ≥ ^h0000) & (address ≤ ^h1FFF));
= ((address ≥ ^h2000) & (address ≤ ^h20FF));
= ((address ≥ ^h0000) & (address ≤ ^h3FFF));
= ((address ≥ ^h4000) & (address ≤ ^h7FFF));
= ((page == 0)
= ((page == 0)
= ((page == 1)
= ((page == 1)
= ((page == 2)
= ((page == 2)
& (address ≥ ^h8000)
& (address ≥ ^hC000)
& (address ≥ ^h8000)
& (address ≥ ^hC000)
& (address ≥ ^h8000)
& (address ≥ ^hC000)
& (address ≤ ^hBFFF));
& (address ≤ ^hFFFF));
& (address ≤ ^hBFFF));
& (address ≤ ^hFFFF));
& (address ≤ ^hBFFF));
& (address ≤ ^hFFFF));
PSD module
199/300