PCF84C85AP datasheet(6/20 Pages) PHILIPS

6 / 20 page

1996 Nov 21

Philips Semiconductors

Product speciﬁcation

Microcontroller with extended I/O

PCF84C85A

SUMMARY OF DERIVATIVE PORTS AND REGISTERS

Table 2

Derivative Ports.

Table 3

Derivative Registers.

ROM MASK OPTIONS

DERIVATIVE

ADDRESS

TYPE

MNEMONIC

DESCRIPTION

00H

DP0L

Derivative Port 0 lines

01H

DP1L

Derivative Port 1 lines

02H

R/W

DP0FF

Derivative Port 0 flip-flops

03H

R/W

DP1FF

Derivative Port 1 flip-flops

04H

−−

MNEMONIC

43210

DP0L

D0.7

D0.6

D0.5

D0.4

D0.3

D0.2

D0.1

D0.0

DP1L

D1.6

D1.5

D1.4

D1.3

D1.2

D1.1

D1.0

DP0FF

F0.7

F0.6

F0.5

F0.4

F0.3

F0.2

F0.1

F0.0

DP1FF

F1.6

F1.5

F1.4

F1.3

F1.2

F1.1

F1.0

ROM CODE

OPTION

Program/data

Any mix of instructions and data up to ROM size of

8 kbytes.

Port Output

P0.0 to P0.7

standard

open-drain

push-pull

P1.0 to P1.7

standard

open-drain

push-pull

SDA/P2.3

−

open-drain

−

DP0.0 to DP0.7

standard

open-drain

push-pull

DP1.0 to DP1.7

standard

open-drain

push-pull

Port State after reset

P0.0 to P0.7

set

reset

−

P1.0 to P1.7

set

reset

−

SDA/P2.3

set

−−

DP1.0 to DP1.7

set

reset

−

DP2.0 to DP2.2

set

reset

−

Oscillator

Transconductance

LOW (gmL)

MEDIUM (gmM)

HIGH (gmH)

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