Section 14 Serial Communication Interface with FIFO (SCIF)
Rev. 2.00 Mar 09, 2006 page 570 of 906
REJ09B0292-0200
Bit 1:
CKE1
Bit 0:
CKE0
Description
0
0
Asynchronous mode
Internal clock/SCK pin functions as input pin (input
signal ignored)
*
1
Synchronous mode
Internal clock/SCK pin functions as serial clock
output
*
1
1
Asynchronous mode
Internal clock/SCK pin functions as clock output
*
2
Synchronous mode
Internal clock/SCK pin functions as serial clock
output
1
*
4
Asynchronous mode
External clock/SCK pin functions as clock input
*
3
Synchronous mode
External clock/SCK pin functions as serial clock
input
Notes: 1. Initial value
2. Outputs a clock with a frequency of 16/8/4 times the bit rate.
3. Inputs a clock with a frequency of 16/8/4 times the bit rate.
4. Don’t care
14.2.7
Serial Status 1 Register (SC1SSR)
Bit:
15
14
13
12
11
10
9
8
PER3
PER2
PER1
PER0
FER3
FER2
FER1
FER0
Initial value:
0
0
0
0
0
0
0
0
R/W:
R
R
R
R
R
R
R
R
Bit:
7
6
5
4
3
2
1
0
ER
TEND
TDFE
BRK
FER
PER
RDF
DR
Initial value:
0
1
1
0
0
0
0
0
R/W:
R/(W)
*
R
R/(W)
*
R/(W)
*
R
R
R/(W)
*
R/(W)
*
Note:
*
Only 0 can be written, to clear the flag.
The serial status 1 register (SC1SSR) is a 16-bit register in which the lower 8 bits consist of status
flags that indicate the operating status of the SCIF, and the upper 8 bits indicate the number of
receive errors in the data in the receive FIFO register.
SC1SSR can be read or written to at all times. However, 1 cannot be written to the ER, TDFE,
BRK, RDF, and DR status flags. Also note that in order to clear these flags to 0, they must first be
read as 1. The TEND, FER, and PER flags are read-only and cannot be modified.
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 ...