UPSD3422E-40U6 STMicroelectronics, UPSD3422E-40U6 Datasheet - Page 231
UPSD3422E-40U6
Manufacturer Part Number
UPSD3422E-40U6
Description
MCU 8BIT 8032 64KB FLASH 80TQFP
Manufacturer
STMicroelectronics
Series
µPSDr
Datasheet
1.UPSD3422EV-40U6.pdf
(300 pages)
Specifications of UPSD3422E-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
80KB (80K x 8)
Program Memory Type
FLASH
Ram Size
4K 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
497-5577 - BOARD EVAL USB POWER SWITCH497-5518 - EVAL BOARD RFID READER
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Other names
497-4903
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPSD3422E-40U6
Manufacturer:
STMicroelectronics
Quantity:
10 000
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UPSD3422, UPSD3433, UPSD3434, UPSD3454
28.5.35
28.5.36
28.5.37
I/O ports
There are four programmable I/O ports on the PSD module: Port A (80-pin device only), Port
B, Port C, and Port D. Ports A and B are eight bits each, Port C is four bits, and Port D is two
bits for 80-pin devices or 1-bit for 52-pin devices. Each port pin is individually configurable,
thus allowing multiple functions per port. The ports are configured using PSDsoft Express
then programming with JTAG, and also by the 8032 writing to csiop registers at run-time.
Topics discussed in this section are:
●
●
●
General port architecture
The general architecture for a single I/O Port pin is shown in
structures for Ports A, B, C, and D differ slightly and are shown in
though
Figure 79 on page 232
value that the 8032 writes to csiop Direction, Drive, Control, and Data Out. The I/O Port logic
contains an output mux whose mux select signal is determined by PSDsoft Express and the
csiop Control register bits at run-time. Inputs to this output mux include the following:
1.
2.
3.
4.
The Port Data Buffer (PDB) provides feedback to the 8032 and allows only one source at a
time to be read when the 8032 reads various csiop registers. There is one PDB for each port
pin enabling the 8032 to read the following on a pin-by-pin basis:
1.
2.
3.
4.
5.
6.
A port pin’s output enable signal is controlled by a two input OR gate whose inputs come
from: a product term of the AND-OR array; the output of the csiop direction register. If an
output enable from the AND-OR Array is not defined, and the port pin is not defined as an
OMC output, and if Peripheral I/O mode is not used, then the csiop direction register has
sole control of the OE signal.
As shown in
and is also separately routed to an IMC, allowing the 8032 to read a port pin by two different
methods (MCU I/O input mode or read the IMC).
Port operating modes
I/O Port logic has several modes of operation.
modes are available on each port. Each of the port operating modes are described in
General port architecture
Port operating modes
Individual port structure
Data from the csiop Data Out register for MCU I/O output mode (All ports)
Latched de-multiplexed 8032 Address for Address Output mode (Ports A and B only)
Peripheral I/O mode data bit (Port A only)
GPLD OMC output (Ports A, B, and C).
MCU I/O signal direction setting (csiop Direction reg)
Pin drive type setting (csiop Drive Select reg)
Latched Addr Out mode setting (csiop Control reg)
MCU I/O pin output setting (csiop Data Out reg)
Output Enable of pin driver (csiop Enable Out reg)
MCU I/O pin input (csiop Data In reg)
Figure 87 on page
Figure 79 on page
shows four csiop registers whose outputs are determined by the
247.
232, a physical port pin is connected to the I/O Port logic
Table 171 on page 229
Figure 79 on page
Figure 84 on page 243
summarizes which
PSD module
232. Port
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