h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 561

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Bit
7
6
5
4
3
2
1
0
Bit Name
CNTE
STOPIMX
CNTS1
CNTS0
BBC3
BBC2
BBC1
BBC0
Initial Value
0
0
0
0
1
1
1
1
R/W
R/W
R/W
R/W
R/W
R
R
R
R
Description
Timeout Counter Enable
Starts or stops the timeout counter.
0: Stops the timeout counter and clears the internal
1: Operates the timeout counter
Stop Condition Interrupt Source Mask X
Selects whether to enable CREQ interrupt requests
by stop conditions.
0: CREQ interrupt requests by stop conditions are
1: CREQ interrupt requests by stop conditions are
Counter Select
These bits specify the number of clock cycles for the
timeout counter. The clock is selected by the IICX1
and IICX0 bits in STCR and the CKS2 to CKS0 bits
in ICMR.
00: 32 clock cycles
01: 34 clock cycles
10: 128 clock cycles
11: 256 clock cycles
Frame Bit Count
These bits count the frame bit at each rising edge of
SCL. These bits are cleared to B'0000 at the first
rising edge, and are incremented by 1 at each rising
edge. After being incremented to B'0111 at the eighth
rising edge, these bits are initialized to B'1111 at the
next rising edge (for acknowledge).
counter
enabled
disabled
Rev. 3.00 Jan 25, 2006 page 509 of 872
Section 17 I
2
C Bus Interface (IIC)
REJ09B0286-0300