Section 18
I
2
C Bus Interface (IIC)
Rev. 1.00 Apr. 28, 2008 Page 543 of 994
REJ09B0452-0100
18.3.5 I
2
C Bus Control Register (ICCR)
ICCR controls the I
2
C bus interface and performs interrupt flag confirmation.
Bit Bit
Name
Initial
Value R/W Description
7
ICE 0 R/W
I
2
C Bus Interface Enable
0: I
2
C bus interface modules are stopped and I
2
C bus
interface module internal state is initialized. SAR
and SARX can be accessed.
1: I
2
C bus interface modules can perform transfer
operation, and the ports function as the SCL and
SDA input/output pins. ICMR and ICDR can be
accessed.
6 IEIC 0
R/W
I
2
C Bus Interface Interrupt Enable
0: Disables interrupts from the I
2
C bus interface to the
CPU
1: Enables interrupts from the I
2
C bus interface to the
CPU.
5
4
MST
TRS
0
0
R/W
R/W
Master/Slave Select
Transmit/Receive Select
MST TRS
0 0:
Slave receive mode
0 1:
Slave transmit mode
1 0:
Master receive mode
1 1:
Master transmit mode
Both these bits will be cleared by hardware when they
lose in a bus contention in master mode with the I
2
C
bus format. In slave receive mode with I
2
C bus format,
the R/
W
bit in the first frame immediately after the start
condition sets these bits in receive mode or transmit
mode automatically by hardware.
Modification of the TRS bit during transfer is deferred
until transfer is completed, and the changeover is made
after completion of the transfer (at the rising edge of
the 9th clock).
Содержание H8S/2100 Series
Страница 2: ...Rev 1 00 Apr 28 2008 Page ii of xxvi...
Страница 54: ...Section 1 Overview Rev 1 00 Apr 28 2008 Page 28 of 994 REJ09B0452 0100...
Страница 92: ...Section 2 CPU Rev 1 00 Apr 28 2008 Page 66 of 994 REJ09B0452 0100...
Страница 158: ...Section 5 Interrupt Controller Rev 1 00 Apr 28 2008 Page 132 of 994 REJ09B0452 0100...
Страница 244: ...Section 8 8 Bit PWM Timer PWMU Rev 1 00 Apr 28 2008 Page 218 of 994 REJ09B0452 0100...
Страница 330: ...Section 10 16 Bit Timer Pulse Unit TPU Rev 1 00 Apr 28 2008 Page 304 of 994 REJ09B0452 0100...
Страница 354: ...Section 11 16 Bit Cycle Measurement Timer TCM Rev 1 00 Apr 28 2008 Page 328 of 994 REJ09B0452 0100...
Страница 380: ...Section 12 16 Bit Duty Period Measurement Timer TDP Rev 1 00 Apr 28 2008 Page 354 of 994 REJ09B0452 0100...
Страница 416: ...Section 13 8 Bit Timer TMR Rev 1 00 Apr 28 2008 Page 390 of 994 REJ09B0452 0100...
Страница 494: ...Section 15 Serial Communication Interface SCI Rev 1 00 Apr 28 2008 Page 468 of 994 REJ09B0452 0100...
Страница 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
Страница 706: ...Section 20 LPC Interface LPC Rev 1 00 Apr 28 2008 Page 680 of 994 REJ09B0452 0100...
Страница 752: ...Section 21 FSI Interface Rev 1 00 Apr 28 2008 Page 726 of 994 REJ09B0452 0100...
Страница 774: ...Section 23 RAM Rev 1 00 Apr 28 2008 Page 748 of 994 REJ09B0452 0100...
Страница 1008: ...Section 28 Electrical Characteristics Rev 1 00 Apr 28 2008 Page 982 of 994 REJ09B0452 0100...
Страница 1020: ...Rev 1 00 Apr 28 2008 Page 994 of 994 REJ09B0452 0100...
Страница 1023: ......
Страница 1024: ...H8S 2117R Group Hardware Manual...