UPSD3434E datasheet(3/264 Pages) STMICROELECTRONICS

Part #	UPSD3434E

Description	Turbo Plus Series Fast Turbo 8032 MCU with USB and Programmable Logic

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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uPSD34xx

Contents

3/293

Contents

1

Summary description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

2

Pin descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3

Hardware description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

4

Memory organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

4.1

Internal memory (MCU module, standard 8032 memory: DATA, IDATA, SFR)

20

4.2

External memory (PSD module: program memory, data memory) . . . . . 20

5

8032 MCU core performance enhancements . . . . . . . . . . . . . . . . . . . . 23

5.1

Pre-fetch queue (PFQ) and branch cache (BC) . . . . . . . . . . . . . . . . . . . . 24

5.2

PFQ example, multi-cycle instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.3

Aggregate performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

6

MCU module description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

7

8032 MCU registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.1

Stack pointer (SP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.2

Data pointer (DPTR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.3

Program counter (PC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.4

Accumulator (ACC) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

7.5

B register (B) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7.6

General purpose registers (R0 - R7) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

7.7

Program status word (PSW) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29

8

Special function registers (SFR) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

9

8032 addressing modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

9.1

Register Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

9.2

Direct Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

9.3

Register Indirect Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

9.4

Immediate Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

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