h8s-2169 Renesas Electronics Corporation., h8s-2169 Datasheet - Page 1011

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

STR1—Status Register 1
STR2—Status Register 2
Bit
Initial value
Slave R/W
Host R/W
Note: * Only 0 can be written, to clear the flag.
DBU
R/W
R
7
0
User-defined bits
DBU
R/W
R
6
0
DBU
R/W
R
5
0
Command/data
0
1
Contents of input data register (IDR) are data
Contents of input data register (IDR) are a command
DBU
R/W
Input buffer full
R
4
0
0
1
[Clearing condition]
When the slave processor reads IDR
[Setting condition]
When the host processor writes to IDR
Output buffer full
0
1
Rev. 3.00 Jan 18, 2006 page 983 of 1044
H'FFF6
H'FFFE
C/D
R
R
3
0
[Clearing condition]
When the host processor reads ODR
or the slave writes 0 in the OBF bit
[Setting condition]
When the slave processor writes to
ODR
Appendix B Internal I/O Registers
DBU
R/W
R
2
0
IBF
R
R
1
0
REJ09B0280-0300
R/(W) *
HIF (XBS)
HIF (XBS)
OBF
R
0
0