UPSD3433EB40U6 STMicroelectronics, UPSD3433EB40U6 Datasheet - Page 208

• 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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the 8032 should test the Toggle Flag Bit (DQ6) again, since the Toggle Flag Bit (DQ6) may
have changed simultaneously with the Error Flag Bit (DQ5) (see
The Error Flag Bit (DQ5) is set if either an internal time-out occurred while the embedded
algorithm attempted to program the byte, or if the 8032 attempted to program bit to logic ’1’
when that bit was already programmed to logic ’0’ (must erase to achieve logic ’1’).
It is suggested (as with all Flash memories) to read the location again after the embedded
programming algorithm has completed, to compare the byte that was written to Flash
memory with the byte that was intended to be written.
When using the Data Toggle method during an erase operation,
Toggle Flag Bit (DQ6) toggles until the erase operation is complete. A ’1’ on the Error Flag
Bit (DQ5) indicates a time-out condition on the Erase cycle, a ’0’ indicates no error. The
8032 can read any location within the sector being erased to get the Toggle Flag Bit (DQ6)
and the Error Flag Bit (DQ5).
PSDsoft Express generates ANSI C code functions the user may use to implement these
Data Toggling algorithms.
Figure 73. Data toggle flowchart
Ready/Busy (PC3)
This signal can be used to output the Ready/Busy status of a program or erase operation on
either Flash memory. The output on the Ready/Busy pin is a ’0’ (Busy) when either Flash
memory array is being written, or when either Flash memory array is being erased. The
output is a ’1’ (Ready) when no program or erase operation is in progress. To activate this
function on this pin, the user must select the “Ready/Busy” selection in PSDsoft Express
when configuring pin PC3. This pin may be polled by the 8032 or used as a 8032 interrupt to
NO
DQ5 & DQ6
READ DQ6
TOGGLE
TOGGLE
START
READ
FAIL
DQ6
DQ5
DQ6
= 1
=
=
YES
YES
YES
NO
NO
PASS
AI01370B
Figure 73
Figure
73).
still applies. the
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