Section 26 I
2
C Bus Interface (IIC)
Rev. 1.00 Oct. 01, 2007 Page 1036 of 1956
REJ09B0256-0100
26.3.5 Master
Control Register (ICMCR)
7
6
5
4
3
2
1
0
0
0
0
0
0
0
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
BIt:
Initial value:
R/W:
MDBS
FSCL
FSDA
OBPC
MIE
TSBE
FSB
ESG
−
−
Bit
Bit Name
Initial Value
R/W
Description
7
MDBS
0
R/W
Master Data Buffer Select
This bit is used to select the data buffer. The
double-buffer mode and singe-buffer mode are
available.
When this bit is set to 0, the double-buffer
mode is selected. During a reception, as long
as both buffers are full and the MDR flag has
not been cleared, SCL is held low. When the
MDR flag is cleared, the low level state of SCL
is released.
When this bit is set to 1, the single-buffer mode
is selected. SCL will be held low from the
timing when the receive data register acquires
the data packet until the MDR flag is cleared.
0: Double-buffer mode
1: Single-buffer mode
6
FSCL
—
R/W
Forced SCL
This bit controls the status of the I2C_SCL pin
(reading reflects the current level on the I
2
C
bus). When the OBPC bit is set, this bit directly
controls the SCL line on the bus.
During a read cycle, the level on this bit (which
includes the reset level) will change depending
on the level on I2C_SCL since it reflects the
level on the I2C_SCL.
5 FSDA
—
R/W
Forced
SDA
This bit controls the status of the I2C_SDA pin
(reading reflects the busy status level on the
I2C_SDA). When the OBPC bit is set then this
bit directly controls the SDA line on the bus.
During a read cycle, the level of this bit (which
includes the reset level) will show the busy
status of the I
2
C bus (1 for busy; 0 for not
busy).
Содержание SH7763
Страница 2: ...Rev 1 00 Oct 01 2007 Page ii of lxvi ...
Страница 122: ...Section 2 Programming Model Rev 1 00 Oct 01 2007 Page 56 of 1956 REJ09B0256 0100 ...
Страница 144: ...Section 3 Instruction Set Rev 1 00 Oct 01 2007 Page 78 of 1956 REJ09B0256 0100 ...
Страница 170: ...Section 4 Pipelining Rev 1 00 Oct 01 2007 Page 104 of 1956 REJ09B0256 0100 ...
Страница 282: ...Section 7 Caches Rev 1 00 Oct 01 2007 Page 216 of 1956 REJ09B0256 0100 ...
Страница 378: ...Section 9 Interrupt Controller INTC Rev 1 00 Oct 01 2007 Page 312 of 1956 REJ09B0256 0100 ...
Страница 514: ...Section 12 DDR SDRAM Interface DDRIF Rev 1 00 Oct 01 2007 Page 448 of 1956 REJ09B0256 0100 ...
Страница 630: ...Section 13 PCI Controller PCIC Rev 1 00 Oct 01 2007 Page 564 of 1956 REJ09B0256 0100 ...
Страница 686: ...Section 14 Direct Memory Access Controller DMAC Rev 1 00 Oct 01 2007 Page 620 of 1956 REJ09B0256 0100 ...
Страница 710: ...Section 16 Clock Pulse Generator CPG Rev 1 00 Oct 01 2007 Page 644 of 1956 REJ09B0256 0100 ...
Страница 732: ...Section 17 Watchdog Timer and Reset WDT Rev 1 00 Oct 01 2007 Page 666 of 1956 REJ09B0256 0100 ...
Страница 752: ...Section 18 Power Down Mode Rev 1 00 Oct 01 2007 Page 686 of 1956 REJ09B0256 0100 ...
Страница 772: ...Section 19 Timer Unit TMU Rev 1 00 Oct 01 2007 Page 706 of 1956 REJ09B0256 0100 ...
Страница 824: ...Section 21 Compare Match Timer CMT Rev 1 00 Oct 01 2007 Page 758 of 1956 REJ09B0256 0100 ...
Страница 1060: ...Section 23 Gigabit Ethernet Controller GETHER Rev 1 00 Oct 01 2007 Page 994 of 1956 REJ09B0256 0100 ...
Страница 1062: ...Section 24 IP Security Accelerator SECURITY Rev 1 00 Oct 01 2007 Page 996 of 1956 REJ09B0256 0100 ...
Страница 1124: ...Section 26 I 2 C Bus Interface IIC Rev 1 00 Oct 01 2007 Page 1058 of 1956 REJ09B0256 0100 ...
Страница 1184: ...Section 27 Serial Communication Interface with FIFO SCIF Rev 1 00 Oct 01 2007 Page 1118 of 1956 REJ09B0256 0100 ...
Страница 1350: ...Section 30 SIM Card Module SIM Rev 1 00 Oct 01 2007 Page 1284 of 1956 REJ09B0256 0100 ...
Страница 1484: ...Section 33 Audio Codec Interface HAC Rev 1 00 Oct 01 2007 Page 1418 of 1956 REJ09B0256 0100 ...
Страница 1560: ...Section 35 USB Host Controller USBH Rev 1 00 Oct 01 2007 Page 1494 of 1956 REJ09B0256 0100 ...
Страница 1720: ...Section 37 LCD Controller LCDC Rev 1 00 Oct 01 2007 Page 1654 of 1956 REJ09B0256 0100 ...
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Страница 2026: ...SH7763 Hardware Manual ...