UPSD3422EV-40U6 STMicroelectronics, UPSD3422EV-40U6 Datasheet - Page 136
UPSD3422EV-40U6
Manufacturer Part Number
UPSD3422EV-40U6
Description
MCU 8BIT 8032 64KB FLASH 80TQFP
Manufacturer
STMicroelectronics
Series
µPSDr
Datasheet
1.UPSD3422EV-40U6.pdf
(300 pages)
Specifications of UPSD3422EV-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 ~ 3.6 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
497-4905
Available stocks
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Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
UPSD3422EV-40U6
Manufacturer:
STMicroelectronics
Quantity:
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2
C interface
Enable individual I2C interrupt and set priority
Set the Device address for Slave mode
Enable SIOE (as Slave) to return an ACK signal
Master-Transmitter
Disable all interrupts
Set pointer to global data xmit buffer, set count
Set global variables to indicate Master-Xmitter
Disable Master from returning an ACK
Enable I2C SIOE
Transmit Address and R/W bit = 0 to Slave
Enable All Interrupts and go do something else
Master-Receiver
Disable all interrupts
Set pointer to global data recv buffer, set count
Set global variables to indicate Master-Xmitter
Disable Master from returning an ACK
–
–
–
–
–
–
–
–
–
–
–
<If busy, then test until not busy>
–
–
<bus transmission begins>
–
–
–
–
–
–
SFR IEA.I2C = 1
SFR IPA.I2C = 1 if high priority is desired
SFR S1ADR = XXh, desired address
SFR S1CON.AA = 1
SFR IE.EA = 0
*xmit_buf = *pointer to data
buf_length = number of bytes to xmit
I2C_master = 1, I2C_xmitter = 1
SFR S1CON.AA = 0
SFR S1CON.INI1 = 1
Is bus not busy? (SFR S1STA.BBUSY = 0?)
SFR S1DAT[7:0] = Load Slave Address & FEh
SFR S1CON.STA = 1, send Start on bus
SFR IE.EA = 1
SFR IE.EA = 0
*recv_buf = *pointer to data
buf_length = number of bytes to recv
I2C_master = 1, I2C_xmitter = 0
SFR S1CON.AA = 0
UPSD3422, UPSD3433, UPSD3434, UPSD3454
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