UPSD3234A-40U6T STMicroelectronics, UPSD3234A-40U6T Datasheet - Page 139

• 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: -

UPSD3234A, UPSD3234BV, UPSD3233B, UPSD3233BV
24.9
24.9.1
24.9.2
24.9.3
Table 96.
Note: 1. See
Table 97.
Table 98.
Table 99.
Port data registers
The Port Data Registers, shown in
data from the ports.
and MCU access for each register type. The registers are described below.
Data In
Port pins are connected directly to the Data In buffer. In MCU I/O Input mode, the pin input is
read through the Data In buffer.
Data Out register
Stores output data written by the MCU in the MCU I/O Output mode. The contents of the
Register are driven out to the pins if the Direction Register or the output enable product term
is set to '1.' The contents of the register can also be read back by the MCU.
Output macrocells (OMC)
The CPLD Output Macrocells (OMC) occupy a location in the MCU’s address space. The
MCU can read the output of the Output Macrocells (OMC). If the OMC Mask Register Bits
Control
Direction
Drive Select
Bit 7
Direction Register Bit
0
Register Name
Table 100
(1)
Direction Register Bit
Port configuration registers (PCR)
Port pin direction control, output enable P.T. not defined
Port pin direction control, output enable P.T. defined
Port direction assignment example
0
0
1
1
for Drive Register Bit definition.
Bit 6
0
Table 101
0
1
Bit 5
0
shows the register name, the ports having each register type,
A,B
A,B,C,D
A,B,C,D
Table
Output Enable P.T.
Bit 4
0
101, are used by the MCU to write data to or read
Port
0
1
0
1
Bit 3
0
Bit 2
WRITE/READ
WRITE/READ
WRITE/READ
Port Pin mode
1
Output
Input
I/O ports (PSD module)
Port Pin mode
MCU Access
Bit 1
Output
Output
Output
1
Input
Bit 0
139/189
1