UPSD3433E-40U6 STMicroelectronics, UPSD3433E-40U6 Datasheet - Page 30

• 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

Memory organization
4
Note:
30/300
Memory organization
The 8032 MCU core views memory on the MCU module as “internal” memory and it views
memory on the PSD module as “external” memory, see
Internal memory on the MCU module consists of DATA, IDATA, and SFRs. These standard
8032 memories reside in 384 bytes of SRAM located at a fixed address space starting at
address 0000h.
External memory on the PSD module consists of four types: main Flash (64 Kbyte,
128 Kbyte, or 256 Kbyte), a smaller secondary Flash (32 Kbyte), SRAM (4 Kbyte, 8 Kbyte or
32 Kbyte), and a block of PSD module control registers called csiop (256 bytes). These
external memories reside at programmable address ranges, specified using the software
tool PSDsoft Express. See the PSD module section of this document for more details on
these memories.
External memory is accessed by the 8032 in two separate 64 Kbyte address spaces. One
address space is for program memory and the other address space is for data memory.
Program memory is accessed using the 8032 signal, PSEN. Data memory is accessed
using the 8032 signals, RD and WR. If the 8032 needs to access more than 64 Kbytes of
external program or data memory, it must use paging (or banking) techniques provided by
the page register in the PSD module.
When referencing program and data memory spaces, it has nothing to do with 8032 internal
SRAM areas of DATA, IDATA, and SFR on the MCU module. Program and data memory
spaces only relate to the external memories on the PSD module.
External memory on the PSD module can overlap the internal SRAM memory on the MCU
module in the same physical address range (starting at 0000h) without interference because
the 8032 core does not assert the RD or WR signals when accessing internal SRAM.
Figure 5.
addresses
Fixed
7F
FF
80
0
128 bytes
addressing
Indirect
Internal SRAM on
Direct or indirect addressing
UPSD34xx memories
IDATA
MCU module
384 Bytes SRAM
128 Bytes
DATA
SFR
addressing
128 bytes
Direct
UPSD3422, UPSD3433, UPSD3434, UPSD3454
128 KB
256 KB
Flash
64 KB
Main
or
or
• External memories may be placed at virtually
• The SRAM and Flash memories may be placed
• Any memory in 8032 data space is XDATA.
any address using software tool PSDsoft Express.
in 8032 Program Space or Data Space using
PSDsoft Express.
Figure 5
External memory on
Secondary
32 KB
Flash
PSD module
SRAM
32 KB
4 KB
8 KB
or
or
AI10410c