Datasheet

Section 16 Serial Communication Interface (SCI, IrDA)

(The H8S/2695 is not equipped with an IrDA function)

R01UH0166EJ0600 Rev. 6.00 Page 753 of 1434

Mar 02, 2011

H8S/2633 Group, H8S/2633 F-ZTAT

H8S/2633R F-ZTAT

, H8S/2695

Bit 3—Smart Card Data Transfer Direction (SDIR): Selects the serial/parallel conversion

format.

This bit is valid when 8-bit data is used as the transmit/receive format.

Bit 3

SDIR Description

0 TDR contents are transmitted LSB-first (Initial value)

Receive data is stored in RDR LSB-first

1 TDR contents are transmitted MSB-first

Receive data is stored in RDR MSB-first

Bit 2—Smart Card Data Invert (SINV): Specifies inversion of the data logic level. The SINV

bit does not affect the logic level of the parity bit(s): parity bit inversion requires inversion of the

O/E bit in SMR.

Bit 2

SINV Description

0 TDR contents are transmitted without modification (Initial value)

Receive data is stored in RDR without modification

1 TDR contents are inverted before being transmitted

Receive data is stored in RDR in inverted form

Bit 1—Reserved: This bit is always read as 1 and cannot be modified.

Bit 0—Smart Card Interface Mode Select (SMIF): When the smart card interface operates as a

normal SCI, 0 should be written in this bit.

Bit 0

SMIF Description

0 Operates as normal SCI (smart card interface function disabled) (Initial value)

1 Smart card interface function enabled