HD64F2149YV datasheet(615/1075 Pages) RENESAS

615 / 1075 page

Section 18A Host Interface X-Bus Interface (XBS)

Rev. 3.00 Jan 18, 2006 page 587 of 1044

REJ09B0280-0300

Bit 2—CS4 Enable (CS4E): Enables or disables host interface channel 4 functions in slave mode.

When these functions are enabled, channel 4 pins are enabled and processing can be performed for

data transfer between the slave and the host processors.

Bit 2

CS4E

Description

Host interface pin channel 4 functions disabled

(Initial value)

Host interface pin channel 4 functions enabled

Bit 1—CS3 Enable (CS3E): Enables or disables host interface channel 3 functions in slave mode.

When these functions are enabled, channel 3 pins are enabled and processing can be performed for

data transfer between the slave and the host processors.

Bit 1

CS3E

Description

Host interface pin channel 3 functions disabled

(Initial value)

Host interface pin channel 3 functions enabled

Bit 0—Host Interface Enable Bit (HI12E): Enables or disables host interface functions in

single-chip mode. When the host interface functions are enabled, processing is performed for data

transfer between the slave and the host processors using the pins determined by bits CS2E to

CS4E, FGA20E, and SDE.

Bit 0

HI12E

Description

Host interface functions are disabled

(Initial value)

Host interface functions are enabled

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