PSD4235G2V-12UIT datasheet(2/124 Pages) STMICROELECTRONICS

Part #	PSD4235G2V-12UIT

Description	Flash in-system programmable (ISP) peripherals for 16-bit MCUs (3.3 V supply)

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

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Contents

PSD4235G2V

2/124

Contents

1

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.1

In-system programming (ISP) via JTAG . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.1.1

First time programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.1.2

Inventory build-up of pre-programmed devices . . . . . . . . . . . . . . . . . . . 12

1.1.3

Expensive sockets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.2

In-application programming (IAP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

1.2.1

Simultaneous READ and WRITE to Flash memory . . . . . . . . . . . . . . . . 13

1.2.2

Complex memory mapping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.2.3

Separate Program and Data space . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

1.3

PSDsoft™ Express . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

2

PSD architectural overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.1

Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.2

PLDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.3

I/O ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

2.4

MCU bus interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.5

ISP via JTAG port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.6

In-system programming (ISP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.7

In-application programming (IAP) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

2.8

Page register . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

2.9

Power management unit (PMU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

3

Development system . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4

PSD register description and address offsets . . . . . . . . . . . . . . . . . . . 22

5

Register bit definition . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.1

Data-In registers - port A, B, C, D, E, F, G . . . . . . . . . . . . . . . . . . . . . . . . 24

5.2

Data-out registers - port A, B, C, D, E, F, G . . . . . . . . . . . . . . . . . . . . . . . 24

5.3

Direction registers - ports A, B, C, D, E, F, G . . . . . . . . . . . . . . . . . . . . . . 24

5.4

Control registers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

5.5

Drive registers - Ports A, B, D, E, G . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

5.6

Drive registers - Ports C and F . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Similar Part No. - PSD4235G2V-12UIT

Manufacturer	Part #	Datasheet	Description
STMicroelectronics	PSD4235G2V-12UI	503Kb / 93P	Flash In-System-Programmable Peripherals for 16-Bit MCUs
	PSD4235G2V-12UI	703Kb / 89P	Flash In-System Programmable ISP Peripherals For 16-bit MCUs 5V Supply
	PSD4235G2V-12UI	756Kb / 100P	Flash In-System Programmable (ISP) Peripherals for 16-bit MCUs
	PSD4235G2V-12UII	756Kb / 100P	Flash In-System Programmable (ISP) Peripherals for 16-bit MCUs

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