UPSD3433E-40T6 STMicroelectronics, UPSD3433E-40T6 Datasheet - Page 131

• 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
23.10
Table 79.
I
The S1ADR register
serial byte that has just been received. The MCU may access S1DAT while the SIOE is not
in the process of shifting a byte (the INTR flag indicates shifting is complete).
2
C data shift register (S1DAT)
Bit
7
6
5
4
3
2
1
0
ACK_RESP
TX_MODE
S1STA register bit definition
Symbol
BBUSY
BLOST
STOP
INTR
SLV
GC
(Table
R/W
R,W
80) holds a byte of serial data to be transmitted or it holds a
R
R
R
R
R
R
R
General Call flag
GC = 1 if the General Call address of 00h was received when
SIOE is in Slave mode, and GC is cleared by a Start or Stop
condition on the bus. If the SIOE is in Master mode when GC
= 1, the Bus Lost condition exists, and BLOST = 1.
STOP flag
STOP = 1 while SIOE detects a Stop condition on the bus
when in Master or Slave mode.
Interrupt flag
INTR is set to 1 by any of the five I
above. INTR must be cleared by firmware.
Transmission Mode flag
TX_MODE = 1 whenever the SIOE is in Master-Transmitter or
Slave-Transmitter mode. TX_MODE = 0 when SIOE is in any
receiver mode.
Bus Busy flag
BBUSY = 1 when the I
SIOE when a Start condition exists on the bus and BBUSY is
cleared by a Stop condition.
Bus Lost flag
BLOST is set when the SIOE is in Master mode and it looses
the arbitration process to another Master device on the bus.
Not Acknowledge Response flag
While SIOE is in Transmitter mode:
– After SIOE sends a byte, ACK_RESP = 1 whenever the
– After SIOE sends a byte, ACK_RESP = 0 whenever the
Note: If SIOE is in Master-Transmitter mode, and ACK_RESP
= 1 due to a Slave-Transmitter not sending an Acknowledge, a
Stop condition will not automatically be generated by the
SIOE. The Stop condition must be generated with
S1CON.STO = 1.
Slave Mode flag
SLV = 1 when the SIOE is in Slave mode. SLV = 0 when the
SIOE is in Master mode (default).
external I
NOT assert an ackowledge signal (external device asserted
a high on SDA during the acknowledge bit-time).
external I
assert an ackowledge signal (external device drove a low on
SDA during the acknowledge bit-time)
2
2
C device receives the byte, and that device DOES
C device receives the byte, but that device does
2
C bus is in use. BBUSY is set by the
Function
2
C interrupt conditions listed
I
2
C interface
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