H8S2148 Datasheet, PDF (633/1177 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2100 Series

Section 18 Host Interface
Bit 3—Shutdown Enable (SDE): Enables or disables the host interface pin shutdown function.
When this function is enabled, host interface pin functions can be halted, and the pins placed in the
high-impedance state, according to the state of the HIFSD pin.
Bit 3
SDE
0
1
Description
Host interface pin shutdown function disabled
Host interface pin shutdown function enabled
(Initial value)
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.
Bit 2
CS4E
0
1
Description
Host interface pin channel 4 functions disabled
Host interface pin channel 4 functions enabled
(Initial value)
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.
Bit 1
CS3E
0
1
Description
Host interface pin channel 3 functions disabled
Host interface pin channel 3 functions enabled
(Initial value)
Bit 0—Host Interface Enable Bit (HI12E): Enables or disables host interface functions in
single-chip mode. When the host interface functions are enabled, slave mode is entered and
processing is performed for data transfer between the slave and host.
Bit 0
HI12E
0
1
Description
Host interface functions are disabled
Host interface functions are enabled
(Initial value)
Rev. 4.00 Sep 27, 2006 page 589 of 1130
REJ09B0327-0400