UPSD3234A-40U6T STMicroelectronics, UPSD3234A-40U6T Datasheet - Page 133

• 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
23.6
AND Array, ORed with the Direction Register output. The pin is enabled upon Power-up if no
output enable equation is defined and if the pin is declared as a PLD output in PSDsoft
Express.
If the Output Macrocell (OMC) output is declared as an internal node and not as a port pin
output in the PSDabel file, the port pin can be used for other I/O functions. The internal node
feedback can be routed as an input to the AND Array.
Input macrocells (IMC)
The CPLD has 20 Input Macrocells (IMC), one for each pin on Ports A and B, and 4 on Port
C. The architecture of the Input Macrocells (IMC) is shown in
Macrocells (IMC) are individually configurable, and can be used as a latch, register, or to
pass incoming Port signals prior to driving them onto the PLD input bus. The outputs of the
Input Macrocells (IMC) can be read by the MCU through the internal data bus.
The enable for the latch and clock for the register are driven by a multiplexer whose inputs
are a product term from the CPLD AND Array or the MCU Address Strobe (ALE). Each
product term output is used to latch or clock four Input Macrocells (IMC). Port inputs 3-0 can
be controlled by one product term and 7-4 by another.
Configurations for the Input Macrocells (IMC) are specified by equations written in PSDsoft
(see Application Note AN1171). Outputs of the Input Macrocells (IMC) can be read by the
MCU via the IMC buffer.
See
Figure 60. Input macrocell
Section 24: I/O ports (PSD
ENABLE ( .OE )
PT
PT
FEEDBACK
MACROCELLS BC
MACROCELL AB
module).
OUTPUT
INPUT MACROCELL _ RD
AND
MUX
D FF
LATCH
Q
Q
G
D
D
MCU DATA BUS
INPUT MACROCELL
MUX
PT
ALE
DIRECTION
REGISTER
Figure
D [ 7:0 ]
60. The Input
DRIVER
PORT
AI06603
I/O PIN
133/189
PLDs