H8SSLASH2214 datasheet(871/936 Pages) RENESAS

871 / 936 page

Appendix B Internal I/O Register

Rev.4.00 Sep. 18, 2008 Page 811 of 872

REJ09B0189-0400

SCR1—Serial Control Register 1

H'FF82

SCI1

TIE

R/W

RIE

R/W

MPIE

R/W

CKE0

R/W

TEIE

R/W

CKE1

R/W

Bit

Initial value

R/W

Transmit End Interrupt Enable

Transmit end interrupt (TEI) request disabled

Transmit end interrupt (TEI) request enabled

Transmit Enable

Transmission disabled

Transmission enabled

Receive Enable

Reception disabled

Reception enabled

Receive Interrupt Enable

Transmit Interrupt Enable

Transmit data empty interrupt (TXI) requests disabled

Transmit data empty interrupt (TXI) requests enabled

Receive data full interrupt (RXI) request and receive error

interrupt (ERI) request disabled

Receive data full interrupt (RXI) request and receive error

interrupt (ERI) request enabled

Multiprocessor Interrupt Enable

Multiprocessor interrupts disabled (normal reception performed)

[Clearing conditions]

• When the MPIE bit is cleared to 0

• When MPB= 1 data is received

Multiprocessor interrupts enabled

Receive interrupt (RXI) requests, receive error interrupt (ERI)

requests, and settingof the RDRF, FER, and ORER flags in SSR

are disabled until data with the multiprocessor bit set to 1 is received.

Clock Enable 1 and 0

Asynchronous mode

Internal clock/SCK pin

functions as I/O port

Clocked synchronous mode

Internal clock/SCK pin

functions as serial clock output

Asynchronous mode

Internal clock/SCK pin

functions as clock output*

Clocked synchronous mode

Internal clock/SCK pin

functions as serial clock output

Asynchronous mode

External clock/SCK pin

functions as clock input*

Clocked synchronous mode

External clock/SCK pin

functions as serial clock input

Asynchronous mode

External clock/SCK pin

functions as clock input*

Clocked synchronous mode

External clock/SCK pin

functions as serial clock input

Notes: 1.

Outputs a clock of the same frequency as the bit rate.

Inputs a clock with a frequency 16 times the bit rate.

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