h8s-2161b Renesas Electronics Corporation., h8s-2161b Datasheet - Page 598
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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Section 19 Host Interface LPC Interface (LPC)
Table 19.2 Register Selection
Bit 4
Bit 4
Bit 4
Bit 4
Bit 4
Bit 4
Bit 4
Bit 4
Bit 4
19.3.4
The IDR registers are 8-bit read-only registers for the slave processor (this LSI), and 8-bit write-
only registers for the host processor. The registers selected from the host according to the I/O
address are shown in the following table. For information on IDR3 selection, see section 19.3.3,
LPC Channel 3 Address Register (LADR3). Data transferred in an LPC I/O write cycle is written
to the selected register. The state of bit 2 of the I/O address is latched into the C/D bit in STR, to
indicate whether the written information is a command or data. The initial values of IDR1 to IDR3
are undefined.
Bits 15 to 4
0000 0000 0110
0000 0000 0110
0000 0000 0110
0000 0000 0110
Rev. 3.00 Mar 21, 2006 page 544 of 788
REJ09B0300-0300
Input Data Registers 1 to 3 (IDR1 to IDR3)
Bit 3
Bit 3
Bit 3
Bit 3
Bit 3
0
0
1
0
0
1
I/O Address
Bit 2
0
1
0
1
0
0
1
0
0
1
I/O Address
Bit 3
0
0
0
0
Bit 1
Bit 1
Bit 1
Bit 1
Bit 1
0
0
1
0
0
1
Bit 2
0
1
0
1
0
0
0
0
1
1
Bit 0
0
0
0
1
1
0
1
1
Bit 1
Bit 0
0
0
0
0
I/O write
I/O write
I/O read
I/O read
I/O write
I/O read
I/O read
Transfer
Cycle
I/O write
Transfer
Cycle
I/O write
I/O write
I/O write
I/O write
IDR3 write, C/D3
IDR3 write, C/D3
Host Register Selection
ODR3 read
STR3 read
TWR0MW write
TWR1 to TWR15 write
TWR0SW read
TWR1 to TWR15 read
Host Register Selection
IDR1 write, C/D1
IDR1 write, C/D1
IDR2 write, C/D2
IDR2 write, C/D2
0
1
0
1
0
1
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