DS28CZ04: 4kbit I²C/SMBus EEPROM with Nonvolatile PIO

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PIO Read-Inversion and Output Type (Device Address = A0h)

ADDR

b7

b6

b5

b4

b3

b2

b1

b0

7Bh

OT3

OT2

OT1

OT0

IMSK3

IMSK2

IMSK1

IMSK0

There is general read and write access to this address. The power-on default is copied from memory address 77h

(Device Address = A0h).

BIT DESCRIPTION

BIT(S)

DEFINITION

IMSK0: Read-inversion

control of PIO0

b0

0

⇒ no inversion, 1 ⇒ data read from PIO0 is inverted

IMSK1: Read-inversion

control of PIO1

b1

0

⇒ no inversion, 1 ⇒ data read from PIO1 is inverted

IMSK2: Read-inversion

control of PIO2

b2

0

⇒ no inversion, 1 ⇒ data read from PIO2 is inverted

IMSK3: Read-inversion

control of PIO3

b3

0

⇒ no inversion, 1 ⇒ data read from PIO3 is inverted

OT0: Output Type of

PIO0

b4

0:

⇒ Push-Pull, 1 ⇒ Open Drain

OT1: Output Type of

PIO1

b5

0:

⇒ Push-Pull, 1 ⇒ Open Drain

OT2: Output Type of

PIO2

b6

0:

⇒ Push-Pull, 1 ⇒ Open Drain

OT3: Output Type of

PIO3

b7

0:

⇒ Push-Pull, 1 ⇒ Open Drain

PIO Read/Write Access Registers (Device Address = A0h)

ADDR

b7

b6

b5

b4

b3

b2

b1

b0

PIO Address Mode

IV3

IV2

IV1

IV0

OV3

OV2

OV1

OV0

Single

7Ch

1

1

1

IV0

1

1

1

OV0

Multi

00h (no function)

Single

7Dh

1

1

1

IV1

1

1

1

OV1

Multi

00h (no function)

Single

7Eh

1

1

1

IV2

1

1

1

OV2

Multi

00h (no function)

Single

7Fh

1

1

1

IV3

1

1

1

OV3

Multi

There is general read and write access to these registers. Bits shown as 1 have no function; their state cannot be

changed.