UPSD3433EB40U6 STMicroelectronics, UPSD3433EB40U6 Datasheet - Page 103
UPSD3433EB40U6
Manufacturer Part Number
UPSD3433EB40U6
Description
MCU 8BIT 8032 128KB FLASH 80TQFP
Manufacturer
STMicroelectronics
Series
µPSDr
Datasheet
1.UPSD3434EB40T6.pdf
(293 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPSD3433EB40U6
Manufacturer:
STMicroelectronics
Quantity:
10 000
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uPSD34xx
21.3.1
21.3.2
Using timer 1 to generate baud rates
When Timer 1 is used as the baud rate generator (bits RCLK = 0, TCLK = 0), the baud rates
in Modes 1 and 3 are determined by the Timer 1 overflow rate and the value of SMOD as
follows:
The Timer 1 Interrupt should be disabled in this application. The Timer itself can be
configured for either “timer” or “counter” operation, and in any of its 3 running modes. In the
most typical applications, it is configured for “timer” operation, in the Auto-reload Mode (high
nibble of the SFR TMOD = 0010B). In that case the baud rate is given by the formula:
Table 49
1.
Using timer/counter 2 to generate baud rates
See
Table 49.
Modes 1 or 3
Modes 1 or 3
Modes 1 or 3
Modes 1 or 3
Modes 1 or 3
Modes 1 or 3
Modes 1 or 3
Modes 1 or 3
Modes 1 or 3
Modes 1 or 3
Modes 1 or 3
Modes 1 or 3
Modes 1 or 3
UART Mode
Mode 0 Max
Mode 2 Max
Mode 2 Max
Section 20.6.3: Baud rate generator mode on page
lists various commonly used baud rates and how they can be obtained from Timer
Mode 1,3 Baud Rate =
(2
Mode 1,3 Baud Rate =
(2
SMOD
SMOD
Commonly used baud rates generated from timer 1
f
OSC
11.0592
11.0592
11.0592
11.0592
33.333
33.333
33.333
33.333
40.0
40.0
40.0
40.0
40.0
36.0
24.0
12.0
/ 32) x (Timer 1 overflow rate)
/ 32) x (f
MHz
3.33MHz
OSC
Desired
1250 k
19200
19200
57600
28800
19200
57600
28800
19200
Baud
625 k
9600
9600
9600
4800
9600
Rate
/ (12 x [256 – (TH1)]))
Resultant
3.33MHz
1250 k
18939
18570
57870
28934
19290
57600
28800
19200
Baud
625 k
Rate
9470
9645
9615
4808
9600
Deviation
-1.36%
-1.36%
-2.34%
0.47%
0.47%
0.47%
0.47%
0.16%
0.16%
Baud
Rate
0
0
0
0
0
0
0
94.
SMOD
PCON
bit in
X
1
0
1
1
1
1
1
1
1
1
1
1
1
1
1
C/T Bit
TMOD
Serial UART interfaces
in
X
X
X
0
0
0
0
0
0
0
0
0
0
0
0
0
TMOD
Timer 1
Timer
Mode
in
X
X
X
2
2
2
2
2
2
2
2
2
2
2
2
2
Reload
value
(hex)
103/293
TH1
EA
FD
EE
FE
FD
F5
F6
FA
F7
F3
F3
FF
FA
X
X
X
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