Section 17 I
2
C Bus Interface (IIC)
Rev. 3.00 Jan 25, 2006 page 496 of 872
REJ09B0286-0300
17.3.7
IIC Operation Reservation Adapter Control Register (ICCRX)
ICCRX controls the operation of the IIC operation reservation adapter.
Bit
Bit Name
Initial Value
R/W
Description
7
ICXE
0
R/W
IIC Operation Reservation Adapter Enable
Selects whether to control the conventional IIC module
or enable and control the IIC operation reservation
adapter.
0: Directly controls the conventional IIC module;
disables the IIC operation reservation adapter
1: Enables the IIC operation reservation adapter;
restricts direct control of the conventional IIC
module
When this bit is set to 1, the SCL and SDA pins can
drive the I
2
C bus, similar to when the ICE bit in ICCR is
set to 1.
6
CRIC
0
R/W
Command Request Interrupt Enable
Enables or disables the IIC operation reservation
command execution end/next command write request
interrupt.
0: Disables the command write request interrupt
1: Enables the command write request interrupt
5
MRIC
0
R/W
Master Mode Transmission/Reception Interrupt Enable
0: Disables the master mode transmission/reception
interrupt (MRREQ, MTREQ)
1: Enables the master mode transmission/reception
interrupt (MRREQ, MTREQ)
4
SRIC
0
R/W
Slave Mode Transmission/Reception Interrupt Enable
0: Disables the slave mode transmission/reception
interrupt (SRREQ, STREQ)
1: Enables the slave mode transmission/reception
interrupt (SRREQ, STREQ)
3
BBSYX
0
R
Bus Busy X
0: Bus is released
1: Bus is occupied
2
—
0
R
Reserved
This bit is always read as 0 and cannot be modified.
Summary of Contents for H8S/2158
Page 10: ...Rev 3 00 Jan 25 2006 page viii of lii...
Page 36: ...Rev 3 00 Jan 25 2006 page xxxiv of lii B Product Lineup 863 C Package Dimensions 864 Index 865...
Page 47: ...Rev 3 00 Jan 25 2006 page xlv of lii Appendix Figure C 1 Package Dimensions TBP 112A 864...
Page 54: ...Rev 3 00 Jan 25 2006 page lii of lii...
Page 70: ...Section 1 Overview Rev 3 00 Jan 25 2006 page 16 of 872 REJ09B0286 0300...
Page 118: ...Section 3 MCU Operating Modes Rev 3 00 Jan 25 2006 page 64 of 872 REJ09B0286 0300...
Page 126: ...Section 4 Exception Handling Rev 3 00 Jan 25 2006 page 72 of 872 REJ09B0286 0300...
Page 198: ...Section 6 Bus Controller Rev 3 00 Jan 25 2006 page 144 of 872 REJ09B0286 0300...
Page 326: ...Section 10 8 Bit PWM Timer PWM Rev 3 00 Jan 25 2006 page 272 of 872 REJ09B0286 0300...
Page 440: ...Section 15 Watchdog Timer WDT Rev 3 00 Jan 25 2006 page 386 of 872 REJ09B0286 0300...
Page 606: ...Section 17 I 2 C Bus Interface IIC Rev 3 00 Jan 25 2006 page 552 of 872 REJ09B0286 0300...
Page 742: ...Section 19 Multimedia Card Interface MCIF Rev 3 00 Jan 25 2006 page 688 of 872 REJ09B0286 0300...
Page 750: ...Section 21 D A Converter Rev 3 00 Jan 25 2006 page 696 of 872 REJ09B0286 0300...
Page 768: ...Section 22 A D Converter Rev 3 00 Jan 25 2006 page 714 of 872 REJ09B0286 0300...
Page 770: ...Section 23 RAM Rev 3 00 Jan 25 2006 page 716 of 872 REJ09B0286 0300...
Page 824: ...Section 26 Clock Pulse Generator Rev 3 00 Jan 25 2006 page 770 of 872 REJ09B0286 0300...
Page 844: ...Section 27 Power Down Modes Rev 3 00 Jan 25 2006 page 790 of 872 REJ09B0286 0300...
Page 878: ...Section 28 List of Registers Rev 3 00 Jan 25 2006 page 824 of 872 REJ09B0286 0300...
Page 926: ...Index Rev 3 00 Jan 25 2006 page 872 of 872 REJ09B0286 0300...