UPSD3433EB40U6 STMicroelectronics, UPSD3433EB40U6 Datasheet - Page 105

• Manufacturer Part Number: UPSD3433EB40U6
• Description: MCU 8BIT 8032 128KB FLASH 80TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3433EB40U6

• 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: 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: 80-TQFP, 80-VQFP
• For Use With: 497-5518 - EVAL BOARD RFID READER497-5046 - KIT TOOL FOR ST7/UPSD/STR7 MCU
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: 497-5660

uPSD34xx
21.5
Figure 31. UART mode 0, block diagram
Figure 32. UART Mode 0, Timing Diagram
More about UART mode 1
Refer to the block diagram in
page
Transmission is initiated by any instruction which writes to SBUF. At the end of a write
operation to SBUF, a '1' is loaded into the 9th position of the transmit shift register and flags
the TX Control unit that a transmission is requested. Transmission actually starts at the end
f OSC /12
SBUF
Write
to
TxD (Shift Clock)
TxD (Shift Clock)
REN
RxD (Data Out)
Write to SCON
107.
Write to SBUF
R1
RxD (Data In)
Receive
Send
Shift
Shift
RI
TI
Interrupt
Serial
Clear RI
Port
D
CL
D0
S
Rx Clock
Tx Clock
Start
Start
SBUF
Read
Q
Figure 33 on page
D0
SBUF
Load
D1
D1
Zero Detector
D2
7 6 5 4 3 2 1 0
Rx Control
Tx Control
Input Shift Register
Internal Bus
Internal Bus
T
R
D2
SBUF
D3
SBUF
D3
D4
Receive
107, and timing diagram in
Send
D4
Shift
Shift
D5
Shift
D5
D6
D6
D7
Clock
Shift
RxD
P3.0 Alt
Input
Function
D7
Serial UART interfaces
RxD
Pin
Transmit
Receive
Figure 34 on
TxD
Pin
AI06824
AI06825
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