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UPSD3234AV-24U6T Datasheet(PDF) 3 Page - STMicroelectronics

Part # UPSD3234AV-24U6T
Description  Flash Programmable System Devices with 8032 Microcontroller Core and 64Kbit SRAM
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

UPSD3234AV-24U6T Datasheet(HTML) 3 Page - STMicroelectronics

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µPSD323X
Jump Instructions . . . . . . . . . . . . . . . . . . . . . . ... . . . . ... .. ... .. .. ... .. . ... .. . . ... . . . . . 28
Unconditional Jump Instructions (Table 13.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28
Machine Cycles .... .. . .... .. . .... . ... .. . . . . . ... . ... .. . . ... .. . .... . ... .. . . ... ... 29
Conditional Jump Instructions . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . . ... 29
State Sequence in
µPSD323X Devices (Figure 14.). . . . . . .... . . . .... .... .. . . . . . . . . .... . 30
µPSD3200 HARDWARE DESCRIPTION . . . . . . . . . . . . . ... . . . . ... .. ... .. .. . . . . . . . ... .. .. . 31
µPSD323X Devices Functional Modules (Figure 15.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
MCU MODULE DISCRIPTION . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. ... 32
Special Function Registers . . . . . .... . ... .. . . .. .... .... .. . . . . . . . . . . . . . ... .. . . . . .... 32
SFR Memory Map (Table 15.) . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . . ... 32
List of all SFR (Table 16.) . . . . . . . . . . .... . . ... .. .... ... . . . . . . . . . . . . . . . . . . . . ... .. ... 33
PSD Module Register Address Offset (Table 17.). . . . . . . . . . . . . . . . . . . . . . . . .... . . ... .. ... 37
INTERRUPT SYSTEM. . . . . . . . . . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . . ... 39
External Int0 . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . ... .. .. ... .. .. .... . . ... .. ... 39
Timer 0 and 1 Interrupts . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . . . .... . ... .. . . ... .. . .... . 39
Timer 2 Interrupt . .... . . . . ... . ... .. . . ... .. . .... . ... .. . . . . .... . . . ... . . . . . . . . .... . 39
I2C Interrupt.... . . . . . . . . . . . . . . . . . ... . . .. .. .. .. .. . . . . ... .. ... .. .. ... .. .. ... .. .. . 39
External Int1 . . . . . . . . . . . . . . . . . . . . . . . . . . ... . . . . . . . . . ... .. .. ... .. .. .... . . ... .. ... 39
DDC Interrupt . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . ... ... 39
USB Interrupt.... .. ... .. . . . . . . . . ... .. . . ... . . . . ... .. ... .. . . . . . . . . ... . .... . ... .. . 39
USART Interrupt . .... . ... ... . . . . . . . . ... .. .. ... . . . .... . . . .... .... .. . .... .. . .... . 40
Interrupt System (Figure 16.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
SFR Register (Table 18.). . . . . . . .... . ... .. . . . . . ... . ... .. . . ... .. . .... . ... .. . . ... ... 41
Interrupt Priority Structure . . . . . . . . . . . . . . . . . . . . .... . . . ... . . . . . . . . . . . . . ... .. . . .. .... 41
Interrupts Enable Structure . . . . . . . . . . . . . . . . . . . .... . . . ... . . . . . . . . . . . . . ... .. . . .. .... 41
Priority Levels (Table 19.) . . . . . . . . . . . . . . . . . . . . .... . . . ... . . . . . . . . . . . . . ... ... . . . .... 41
Description of the IE Bits (Table 20.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41
Description of the IEA Bits (Table 21.) . . . . . . . . . . .... .... .. . . . . . . . . . . . . . ... .. . . . . .... 42
Description of the IP Bits (Table 22.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Description of the IPA Bits (Table 23.) . . . . . . . . . . .... .... .. . . . . . . . . . . . . . ... .. . . . . .... 42
How Interrupts are Handled.... .. .. . . . . . . . ... .. .. ... .... .... ... . . . . . . . . ... .. . . ... . 43
Vector Addresses (Table 24.) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .... . ... .. .43
POWER-SAVING MODE. . . . . . .... . . .. .. .. .. . . . . . . . . . . . . . ... . . . . . . . . . ... .. .. ... .. . ..44
Idle Mode. . . . . . . . . . . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. ... 44
Power-Down Mode . . . . . . . . . . . .... . ... .. . . . . .... .... .. . .... .. . . . . . . ... .. . . . . .... 44
Power-Saving Mode Power Consumption (Table 25.) . . . . . . . . . . . . . . . . . . . . .... . . ... .. ... 44
Power Control Register . .... .. . .... . ... .. . . ... ... . ... .. . . ... .. . .... . ... .. . . ... ... 44
Pin Status During Idle and Power-down Mode (Table 26.) . . . . . . . . . . . . . . . . . .... . . ... .. ... 44
Description of the PCON Bits (Table 27.) . . . . . . . .... . ... .. .. .. . . . . . . . ... .. .. . . ... .. . . 44
Idle Mode. . . . . . . . . . . . . . . . . . . . . . . .... . . ... .. ... .. .. . . . . . . . ... .. .. .... . . ... .. ... 44


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