UPSD3234A-40U6T STMicroelectronics, UPSD3234A-40U6T Datasheet - Page 49

• Manufacturer Part Number: UPSD3234A-40U6T
• Description: IC MCU 8032 64KB FLASH 80TQFP
• Manufacturer: STMicroelectronics
• Series: µPSDr

Specifications of UPSD3234A-40U6T

• Core Processor: 8032
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, UART/USART, USB
• Peripherals: LVR, POR, PWM, WDT
• Number Of I /o: 46
• Program Memory Size: 288KB (288K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Data Converters: A/D 4x8b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 80-TQFP, 80-VQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

UPSD3234A, UPSD3234BV, UPSD3233B, UPSD3233BV
6
6.1
Note:
6.2
Note:
6.3
Table 26.
Addr
SFR
87
PCON
Name
Reg
Power-saving mode
Two software selectable modes of reduced power consumption are implemented.
Idle mode
In Idle mode, the following functions are switched Off.
●
The following functions remain Active during Idle mode:
●
●
●
●
●
●
●
●
Interrupt or RESET terminates the Idle mode.
Power-down mode
●
●
●
●
The only way to exit Power-down mode is through a RESET.
Table 25.
Power control register
The Idle and Power-down modes are activated by software via the PCON register.
Pin status during Idle and Power-down mode
Power-down
Mode
CPU (Halted)
External Interrupts
Timer 0, Timer 1, Timer 2
DDC Interface
PWM Units
USB Interface
USART
8-bit ADC
I
System Clock Halted
LVD Logic Remains Active
SRAM content remains unchanged
The SFRs retain their value until a RESET is asserted
SMOD
2
Idle
C Interface
7
Power-saving mode power consumption
SMOD1
Maintain Data
Maintain Data
6
Addr/data
LVREN ADSFINT RCLK1
5
Bit Register Name
Maintain Data
Maintain Data
4
Ports 1,3,4
3
TCLK1
Disable
2
Active
PWM
PD
1
Disable
Active
I
2
C
IDLE
0
Power-saving mode
Disable
Active
DDC
Reset
Value
00
Comments
Power Ctrl
Disable
Active
USB
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