HD64570 Datasheet, PDF (169/469 Pages) Hitachi Semiconductor – Serial Communications Adaptor

• Asynchronous/Byte synchronous/Bit synchronous mode
CDCDE = 0: Disables an interrupt set by the CDCD bit of ST1
CDCDE = 1: Enables an interrupt set by the CDCD bit of ST1; the RXINT bit of ST0 is set to
1 when the CDCD and CDCDE bits are both 1
Bit 1 (BRKDE/ABTDE: BRKD/ABTD Interrupt Enable): The function of this bit is described
below.
• Asynchronous/Bit synchronous mode
BRKDE/ABTDE = 0: Disables an interrupt set by the BRKD/ABTD bit of ST1
BRKDE/ABTDE = 1: Enables an interrupt set by the BRKD/ABTD bit of ST1; the RXINT
bit of ST0 is set to 1 when the BRKD/ABTD and BRKDE/ABTDE bits are both 1
• Byte synchronous mode
Reserved. This bit always reads 0 and must be set to 0.
Bit 0 (BRKEE/IDLDE: BRKE/IDLD Interrupt Enable): The function of this bit is described
below.
• Asynchronous/Bit synchronous mode
BRKEE/IDLDE = 0: Disables an interrupt set by the BRKE/IDLD bit of ST1
BRKEE/IDLDE = 1: Enables an interrupt set by the BRKE/IDLD bit of ST1; the RXINT bit
of ST0 is set to 1 when the BRKE/IDLD and BRKEE/IDLDE bits are both 1
• Byte synchronous mode
Reserved. This bit always reads 0 and must be set to 0.
Rev. 0, 07/98, page 153 of 453