PC87413 datasheet(126/257 Pages) NSC

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6.0 ACCESS.bus Interface (Continued)

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126

Revision1.2

6.3

ACB REGISTERS (ON ACCESS.BUS ONLY)

All these registers are accessible only through the ACCESS.bus.

The following abbreviations are used to indicate the Register Type:

R/W

= Read/Write.

= Read from a speciﬁc register (write to the same address is to a different register).

= Write (see above).

= Read Only.

= Write Only. Reading from the bit returns 0.

R/W1C = Read/Write 1 to Clear. Writing 1 to a bit clears it to 0. Writing 0 has no effect.

R/W1S = Read/Write 1 to Set. Writing 1 to a bit sets its value to 1. Writing 0 has no effect.

6.3.1

ACB Register Map (on ACCESS.bus Only)

Offset

Mnemonic

Type

Power Well

Section

00h

ACBCST

ACCESS.bus Control/Status

Varies per bit

VSB

6.3.2

01h

ACBCFG

ACCESS.bus Configuration

Varies per bit

VSB

6.3.3

02h

ACBLKCTL

ACCESS.bus Lock Control

Varies per bit

VSB

6.3.4

03h

ACBFDIS

ACCESS.bus Fast Disable

R/W

VSB

6.3.5

04h

ACBTRIS

ACCESS.bus TRI-State

R/W

VSB

6.3.6

05h

ACCLCF1

Access Lock Configuration 1

R/W

VSB

6.3.7

06h

ACCLCF2

Access Lock Configuration 2

R/W

VSB

6.3.8

PC87413 Datasheet(PDF) 126 Page - National Semiconductor (TI)

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