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

• 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

8032 MCU registers
7.7.5
7.7.6
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Overflow flag (OV)
The OV flag is set when: an ADD, ADDC, or SUBB instruction causes a sign change; a MUL
instruction results in an overflow (result greater than 255); a DIV instruction causes a divide-
by-zero condition. The OV flag is cleared by the ADD, ADDC, SUBB, MUL, and DIV
instructions in all other cases. The CLRV instruction will clear the OV flag at any time.
Parity flag (P)
The P flag is set if the sum of the eight bits in the Accumulator is odd, and P is cleared if the
sum is even.
Table 4.
Figure 11. Program status word (PSW) register
RS1
0
0
1
1
Register bank select addresses
General Purpose Flag
Auxillary Carry Flag
RS0
0
1
0
1
Carry Flag
PSW
MSB
CY
Register bank
AC FO RS1 RS0 OV
Register Bank Select Flags
(to select Bank0-3)
0
1
2
3
UPSD3422, UPSD3433, UPSD3434, UPSD3454
LSB
P
8032 internal data address
Reset Value 00h
Parity Flag
Bit not assigned
Overflow Flag
AI06639
08h - 0Fh
18h - 1Fh
00h - 07h
10h - 17h