UPSD3433E-40U6 STMicroelectronics, UPSD3433E-40U6 Datasheet - Page 236

• 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

PSD module
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Table 189. MCU I/O mode port D direction register (address = csiop + offset 15h)
1. For each bit, 1 = out from UPSD34xx port pin1, 0 = in to PSD34xx port pin.
2. Default state for register is 00h after reset or power-up.
3. Not available on 52-pin uPSD34xx devices.
PLD I/O mode
Pins on Ports A, B, C, and D can serve as inputs to either the DPLD or the GPLD. Inputs to
these PLDs from Ports A, B, and C are routed through IMCs before reaching the PLD input
bus. Inputs to the PLDs from Port D do not pass through IMCs, but route directly to the PLD
input bus.
Pins on Ports A, B, and C can serve as outputs from GPLD OMCs, and Port D pins can be
outputs from the DPLD (external chip-selects) which do not consume OMCs.
Whenever a pin is specified to be a PLD output, it cannot be used for MCU I/O mode, or
other pin modes. If a pin is specified to be a PLD input, it is still possible to read the pin using
MCU I/O input mode with the csiop register Data In. Also, the csiop Direction register can
still affect a pin which is used for a PLD input. The csiop Data Out register has no effect on a
PLD output pin.
Each pin on Ports A, B, C, and D have a tri-state buffer at the final output stage. The Output
Enable signal for this buffer is driven by the logical OR of two signals. One signal is an
Output Enable signal generated by the AND-OR array (from an .oe equation specified in
PSDsoft), and the other signal is the output of the csiop Direction register. This logic is
shown in
(Direction registers default to 00h). However, if an equation is written for the Output Enable
that is active at power-on, then the pin will behave as an output.
PLD I/O equations are specified in PSDsoft Express and programmed into the uPSD using
JTAG.
pins of Port B.
To give a general idea of how PLD logic is implemented using PSDsoft Express,
on page 237
output at pin PB0 declared as “Combinatorial” in the “PLD Output” section, and a signal
name, “pld_out”, is specified. The other three signals on pins PB1, PB2, and PB3 would be
declared as “Logic or Address” in the “PLD Input” section, and given signal names.
In the “Design Assistant” window of PSDsoft Express shown in
user simply enters the logic equation for the signal “pld_out” as shown. The user can either
type in the logic statements or enter them using a point-and-click method, selecting various
signal names and logic operators available in the window.
After PSDsoft Express has accepted and realized the logic from the equations, it
synthesizes the logic statement:
pld_out = ( pld_in_1 # pld_in_2 ) & !pld_in_3;
to be programmed into the GPLD. See the PSDsoft User’s Manual for all the steps.
Bit 7
N/A
Figure 80
Figure 79 on page
illustrates the pin declaration window of PSDsoft Express, showing the PLD
Bit 6
N/A
shows a very simple combinatorial logic example which is implemented on
Bit 5
N/A
232. At power-on, all port pins default to high-impedance input
Bit 4
N/A
UPSD3422, UPSD3433, UPSD3434, UPSD3454
Bit 3
N/A
PD2
Bit 2
Figure 82 on page
(3)
Bit 1
PD1
Figure 81
238, the
Bit 0
N/A
(1)(2)