UPSD3234A-40U6T STMicroelectronics, UPSD3234A-40U6T Datasheet - Page 140

• Manufacturer Part Number: UPSD3234A-40U6T
• Description: IC MCU 8032 64KB FLASH 80TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3234A-40U6T

• Core Processor: 8032
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, UART/USART, USB
• Peripherals: LVR, POR, PWM, WDT
• Number Of I /o: 46
• Program Memory Size: 288KB (288K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

I/O ports (PSD module)
24.9.4
24.9.5
24.9.6
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are not set, writing to the macrocell loads data to the macrocell flip-flops. See
PLDs.
OMC mask register
Each OMC Mask Register Bit corresponds to an Output Macrocell (OMC) flip-flop. When the
OMC Mask Register Bit is set to a '1,' loading data into the Output Macrocell (OMC) flip-flop
is blocked. The default value is '0' or unblocked.
Input macrocells (IMC)
The Input Macrocells (IMC) can be used to latch or store external inputs. The outputs of the
Input Macrocells (IMC) are routed to the PLD input bus, and can be read by the MCU. See
Section 23:
Enable out
The Enable Out register can be read by the MCU. It contains the output enable values for a
given port. A '1' indicates the driver is in output mode. A '0' indicates the driver is in tri-state
and the pin is in input mode.
Table 100. Drive register pin assignment
1. NA = Not Applicable.
Table 101. Port data registers
Port A
Port B
Port C
Port D
Data In
Data Out
Output Macrocell
Mask Macrocell
Input Macrocell
Enable Out
Register
Drive
Register Name
PLDs.
Open
Open
Open
Drain
Drain
Drain
NA
Bit 7
(1)
Open
Open
Drain
Open
Drain
Drain
NA
Bit 6
(1)
A,B,C,D
A,B,C,D
A,B,C
A,B,C
A,B,C
A,B,C
Port
UPSD3234A, UPSD3234BV, UPSD3233B, UPSD3233BV
Open
Drain
Open
Drain
Open
Drain
NA
Bit 5
(1)
READ – input on pin
WRITE/READ
READ – outputs of macrocells
WRITE – loading macrocells flip-flop
WRITE/READ – prevents loading into a given
macrocell
READ – outputs of the Input Macrocells
READ – the output enable control of the port driver
Open
Open
Open
Drain
Drain
Drain
NA
Bit 4
(1)
Open
Drain
NA
Bit 3
Slew
Rate
Slew
Rate
(1)
MCU Access
Open
Drain
Bit 2
Slew
Slew
Slew
Rate
Rate
Rate
Open
Drain
Bit 1
Slew
Rate
Slew
Rate
Slew
Rate
Section 23:
Open
Drain
NA
Bit 0
Slew
Rate
Slew
Rate
(1)