UPSD3433E-40T6 STMicroelectronics, UPSD3433E-40T6 Datasheet - Page 239

• Manufacturer Part Number: UPSD3433E-40T6
• Description: MCU 8BIT 8032 128KB FLASH 52TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3433E-40T6

• 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: 35
• 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: 52-TQFP, 52-VQFP
• For Use With: 497-5518 - EVAL BOARD RFID READER
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: 497-4906

UPSD3422, UPSD3433, UPSD3434, UPSD3454
28.5.41
Note:
Table 191. Latched address output, port B contro register
1. Default state for register is 00h after reset or power-up.
2. For each bit, 1 = drive demuxed 8032 address signal on pin, 0 = pin is default mode, MCU I/O.
Peripheral I/O mode
This mode will provide a data bus repeater function for the 8032 to interface with external
parallel peripherals. The mode is only available on Port A (80-pin devices only) and the data
bus signals, D0 - D7, are de-multiplexed (no address A0-A7). When active, this mode
behaves like a bidirectional buffer, with the direction automatically controlled by the 8032 RD
and WR signals for a specified address range. The DPLD signals PSEL0 and PSEL1
determine this address range.
mode on the Output Enable logic of the tri-state output driver for a single port pin.
on page 239
function “Peripheral I/O Mode” in PSDsoft Express on any Port A pin (all eight pins of Port A
will automatically change to this mode). Next in PSDsoft, specify an address range for the
PSELx signals in the “Chip-Select” section of the “Design Assistant”. The user can specify
an address range for either PSEL0 or PSEL1. Always qualify the PSELx equation with
“PSEN is logic '1'” to ensure Peripheral I/O mode is only active during 8032 data cycles, not
code cycles. Only one equation is needed since PSELx signals are OR’ed together
(Figure
register, Bit 7 (PIO_EN) as shown in
automatically perform this repeater function whenever the 8032 presents an address (and
memory page number, if paging is used) that is within the range specified by PSELx. Once
Port A is designated as Peripheral I/O mode in PSDsoft Express, it cannot be used for other
functions.
The user can alternatively connect an external parallel peripheral to the standard 8032 AD0-
AD7 pins on an 80-pin uPSD device (not Port A), but these pins have multiplexed address
and data signals, with a weaker fanout drive capability.
Figure 83. Peripheral I/O mode
(addr A7 or
Bit 7
A15)
PB7
83). Then in the 8032 initialization firmware, a logic ’1’ is written to the csiop VM
VM register bit 7 (PIO EN)
8032 WR
8032 RD
PSEL0
PSEL1
(addr A6 or
offset 03h)l
illustrates data repeater the operation. To activate this mode, choose the pin
Bit 6
A14)
PB6
(addr A5 or
Bit 5
A13)
PB5
Figure 79 on page 232
(addr A4 or
Table 154 on page
Bit 4
A12)
PB4
(addr A3 or
(DE-MUXED)
bus D0-D7
8032 data
Bit 3
A11)
PB3
shows the action of Peripheral I/O
189. After this, Port A will
8
(Addr A2
or A10)
Bit 2
PB2
(1) (2)
(address = csiop +
(addr A1 or
Bit 1
PB1
A9)
8
PA0 - PA7
A pins
AI02886A
PSD module
Port
(addr A0 or
Figure 83
Bit 0
PB0
239/300
A8)