Section 14 Serial Communication Interface with FIFO (SCIF)
Rev. 2.00 Mar 09, 2006 page 567 of 906
REJ09B0292-0200
For the relationship between the clock source, the bit rate register setting, and the baud rate, see
section 14.2.9, Bit Rate Register (SCBRR).
Bit 1:
CKS1
Bit 0:
CKS0
Description
0
0
P
φ
clock
(Initial value)
1
P
φ
/4 clock
1
0
P
φ
/16 clock
1
P
φ
/64 clock
Note: P
φ
= peripheral clock
14.2.6
Serial Control Register (SCSCR)
Bit:
7
6
5
4
3
2
1
0
TIE
RIE
TE
RE
MPIE
—
CKE1
CKE0
Initial value:
0
0
0
0
0
0
0
0
R/W:
R/W
R/W
R/W
R/W
R/W
R
R/W
R/W
The serial control register (SCSCR) performs enabling or disabling of SCIF transmit/receive
operations, serial clock output in asynchronous mode, and interrupt requests, and selection of the
transmit/receive clock source.
SCSCR can be read or written to by the CPU at all times.
SCSCR is initialized to H'00 by a reset, by the module standby function, and in standby mode.
Bit 7—Transmit Interrupt Enable (TIE): Enables or disables transmit-FIFO-data-empty interrupt
(TXI) request generation when, after serial transmit data is transferred from the transmit FIFO data
register (SCFTDR) to the transmit shift register (SCTSR), the number of data bytes in SCFTDR
falls to or below the transmit trigger set number, and the TDFE flag is set to 1 in the serial status 1
register (SC1SSR).
Bit 7: TIE
Description
0
Transmit-FIFO-data-empty interrupt (TXI) request disabled
*
(Initial value)
1
Transmit-FIFO-data-empty interrupt (TXI) request enabled
Note:
*
TXI interrupt requests can be cleared by writing transmit data exceeding the transmit trigger
set number to SCFTDR, reading 1 from the TDFE flag, then clearing it to 0, or by clearing
the TIE bit to 0. When transmit data is written to SCFTDR using the on-chip DMAC, the
TDFE flag is cleared automatically.
Содержание SH7616
Страница 10: ...Rev 2 00 Mar 09 2006 page x of xxvi ...
Страница 132: ...Section 2 CPU Rev 2 00 Mar 09 2006 page 106 of 906 REJ09B0292 0200 ...
Страница 568: ...Section 12 16 Bit Free Running Timer FRT Rev 2 00 Mar 09 2006 page 542 of 906 REJ09B0292 0200 ...
Страница 582: ...Section 13 Watchdog Timer WDT Rev 2 00 Mar 09 2006 page 556 of 906 REJ09B0292 0200 ...
Страница 662: ...Section 14 Serial Communication Interface with FIFO SCIF Rev 2 00 Mar 09 2006 page 636 of 906 REJ09B0292 0200 ...
Страница 706: ...Section 16 Serial I O SIO Rev 2 00 Mar 09 2006 page 680 of 906 REJ09B0292 0200 ...
Страница 820: ...Section 19 Pin Function Controller PFC Rev 2 00 Mar 09 2006 page 794 of 906 REJ09B0292 0200 ...
Страница 932: ...Appendix D Package Dimensions Rev 2 00 Mar 09 2006 page 906 of 906 REJ09B0292 0200 ...
Страница 935: ...SH7616 Hardware Manual ...