CS494002 datasheet(94/100 Pages) CIRRUS

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HDATA7, GPIO7 — DSPC Bidirectional Data Bus, General Purpose I/O

HDATA6, GPIO6

HDATA5, GPIO5

HDATA4, GPIO4

HDATA3, GPIO3

HDATA2, GPIO2

HDATA1, GPIO1

HDATA0, GPIO0

In parallel host mode, these pins provide a bidirectional data bus. These pins can also act as

general purpose input or output pins that can be individually configured and controlled by

DSPC. These pins have an internal pull-up. BIDIRECTIONAL - Default: INPUT

A0, GPIO13

— Host Parallel Address Bit 0, General Purpose I/O

In parallel host mode, this pin serves as the LS Bit of a two bit address input used to select

one of four parallel registers. This pin can act as a general-purpose input or output that can be

individually configured and controlled by DSPC. BIDIRECTIONAL - Default: INPUT

A1, GPIO12 — Host Address Bit 1, General Purpose I/O

In parallel host mode, this pin serves as the MS Bit of a two bit address input used to select

one of four parallel registers. This pin can act as a general-purpose input or output that can be

individually configured and controlled by DSPC. BIDIRECTIONAL - Default: INPUT

RD,R/W,GPIO11 — Host Parallel Output Enable, Host Parallel R/W, General Purpose I/O

In Intel parallel host mode, this pin serves as the active-low data bus enable input. In Motorola

parallel host mode, this pin serves as the read-high/write-low control input signal. This pin can

act as a general-purpose input or output that can be individually configured and controlled by

DSPC. This pin has an internal pull-up. BIDIRECTIONAL - Default: INPUT

WR,DS,GPIO10

— Host Write Strobe, Host Data Strobe, General Purpose I/O

In Intel parallel host mode, this pin serves as the active-low data bus enable input. In Motorola

parallel host mode, this pin serves as the read-high/write-low control input signal. In serial host

mode, this pin can serve as a general purpose input or output bit. This pin can act as a

general-purpose input or output that can be individually configured and controlled by DSPC.

This pin has an internal pull-up.

BIDIRECTIONAL - Default: INPUT

CS,GPIO9 — Host Parallel Chip Select, General Purpose I/O

In parallel host mode, this pin serves as the active-low chip-select input signal. This pin can

act as a general-purpose input or output that can be individually configured and controlled by

DSPC. This pin has an internal pull-up. BIDIRECTIONAL - Default: INPUT

CS494002 数据表(PDF) 94 Page - Cirrus Logic

CS494002 数据表(HTML) 94 Page - Cirrus Logic

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