Infrared Serial Communications Interface Module (IRSCI)
R8 — Received Bit 8
When the SCI is receiving 9-bit characters, R8 is the read-only ninth bit (bit 8) of the received
character. R8 is received at the same time that the IRSCDR receives the other 8 bits.
When the SCI is receiving 8-bit characters, R8 is a copy of the eighth bit (bit 7). Reset has no effect
on the R8 bit.
T8 — Transmitted Bit 8
When the SCI is transmitting 9-bit characters, T8 is the read/write ninth bit (bit 8) of the transmitted
character. T8 is loaded into the transmit shift register at the same time that the IRSCDR is loaded into
the transmit shift register. Reset has no effect on the T8 bit.
DMARE — DMA Receive Enable Bit
CAUTION
The DMA module is not included on this MCU. Writing a logic 1 to DMARE
or DMATE may adversely affect MCU performance.
1 = DMA not enabled to service SCI receiver DMA service requests generated by the SCRF bit (SCI
receiver CPU interrupt requests enabled)
0 = DMA not enabled to service SCI receiver DMA service requests generated by the SCRF bit (SCI
receiver CPU interrupt requests enabled)
DMATE — DMA Transfer Enable Bit
CAUTION
The DMA module is not included on this MCU. Writing a logic 1 to DMARE
or DMATE may adversely affect MCU performance.
1 = SCTE DMA service requests enabled; SCTE CPU interrupt requests disabled
0 = SCTE DMA service requests disabled; SCTE CPU interrupt requests enabled
ORIE — Receiver Overrun Interrupt Enable Bit
This read/write bit enables SCI error CPU interrupt requests generated by the receiver overrun bit, OR.
Reset clears ORIE.
1 = SCI error CPU interrupt requests from OR bit enabled
0 = SCI error CPU interrupt requests from OR bit disabled
NEIE — Receiver Noise Error Interrupt Enable Bit
This read/write bit enables SCI error CPU interrupt requests generated by the noise error bit, NE.
Reset clears NEIE.
1 = SCI error CPU interrupt requests from NE bit enabled
0 = SCI error CPU interrupt requests from NE bit disabled
FEIE — Receiver Framing Error Interrupt Enable Bit
This read/write bit enables SCI error CPU interrupt requests generated by the framing error bit, FE.
Reset clears FEIE.
1 = SCI error CPU interrupt requests from FE bit enabled
0 = SCI error CPU interrupt requests from FE bit disabled
PEIE — Receiver Parity Error Interrupt Enable Bit
This read/write bit enables SCI error CPU interrupt
requests generated by the parity error bit, PE. (See 12.9.4 IRSCI Status Register 1.) Reset clears
PEIE.
1 = SCI error CPU interrupt requests from PE bit enabled
0 = SCI error CPU interrupt requests from PE bit disabled
MC68HC908AP Family Data Sheet, Rev. 4
202
Freescale Semiconductor
FREESCALE [ Freescale ]
