h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 112

• Manufacturer Part Number: h8s-2169
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

Section 3 MCU Operating Modes
3.2.4
STCR is an 8-bit readable/writable register that controls register access, the IIC operating mode
(when the on-chip IIC option is included), an on-chip flash memory control, and also selects the
TCNT input clock. For details of functions other than register access control, see the descriptions
of the relevant modules. If a module controlled by STCR is not used, do not write 1 to the
corresponding bit.
STCR is initialized to H'00 by a reset and in hardware standby mode.
Bits 7 to 5—I
interface and others when the on-chip IIC option is included. For details, see section 16, I
Interface.
Bit 4—I
and control registers (ICCR, ICSR, ICDR/SARX, and ICMR/SAR), the PWMX data registers and
control registers (DADRAH/DACR, DADRAL, DADRBH/DACNTH, and DADRBL/DACNTL),
and the SCI control registers (SMR, BRR, and SCMR).
Bit 4
IICE
0
1
Rev. 3.00 Jan 18, 2006 page 84 of 1044
REJ09B0280-0300
Bit
Initial value
Read/Write
2
C Master Enable (IICE): Controls CPU access to the I
Serial Timer Control Register (STCR)
Description
Addresses H'(FF)FF88 and H'(FF)FF89, and H'(FF)FF8E and
H'(FF)FF8F, are used for SCI1 control register access
Addresses H'(FF)FFA0 and H'(FF)FFA1, and H'(FF)FFA6 and
H'(FF)FFA7, are used for SCI2 control register access
Addresses H'(FF)FFD8 and H'(FF)FFD9, and H'(FF)FFDE and
H'(FF)FFDF, are used for SCI0 control register access
Addresses H'(FF)FF88 and H'(FF)FF89, and H'(FF)FF8E and
H'(FF)FF8F, are used for IIC1 data register and control register access
Addresses H'(FF)FFA0 and H'(FF)FFA1, and H'(FF)FFA6 and
H'(FF)FFA7, are used for PWMX data register and control register
access
Addresses H'(FF)FFD8 and H'(FF)FFD9, and H'(FF)FFDE and
H'(FF)FFDF, are used for IIC0 data register and control register access
2
C Control (IICS, IICX1, IICX0): These bits control the operation of the I
IICS
R/W
7
0
IICX1
R/W
6
0
IICX0
R/W
5
0
IICE
R/W
4
0
FLSHE
R/W
3
0
2
C bus interface data registers
R/W
—
2
0
ICKS1
R/W
1
0
(Initial value)
ICKS0
R/W
2
2
C Bus
C bus
0
0