h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 571
h8s-2161b
Manufacturer Part Number
h8s-2161b
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2161B.pdf
(845 pages)
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18.3.3
IDR is a register in which data to be input from the host processor to the slave processor (this LSI)
is stored.
18.3.4
ODR is a register in which data to be output from the slave processor (this LSI) to the host
processor is stored.
Bit
7
6
5
4
3
2
1
0
Bit
7
6
5
4
3
2
1
0
Bit Name
IDR7
IDR6
IDR5
IDR4
IDR3
IDR2
IDR1
IDR0
Bit Name
ODR7
ODR6
ODR5
ODR4
ODR3
ODR2
ODR1
ODR0
Input Data Register (IDR)
Output Data Register 1 (ODR)
Initial
Value
Initial
Value
Slave
R
R
R
R
R
R
R
R
Slave
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Host
W
W
W
W
W
W
W
W
Host
R
R
R
R
R
R
R
R
Section 18 Host Interface X-Bus Interface (XBS)
Description
When CSn (n = 1 to 4) is low, information on the
host data bus is written into IDR_n at the rising
edge of IOW. The HA0 state is also latched into
the C/D bit in STR_n to indicate whether the
written information is a command or data.
Description
The ODR_n contents are output on the host data
bus when HA0 is low, CSn (n = 1 to 4) is low,
and IOR is low.
Rev. 3.00 Mar 21, 2006 page 517 of 788
REJ09B0300-0300
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