Section 20 LPC Interface (LPC)
Rev. 1.00 Apr. 28, 2008 Page 642 of 994
REJ09B0452-0100
R/W
Bit
Bit Name Initial Value Slave Host Description
3 C/
D
3 0
R R
Command/Data
Flag
When the host writes to IDR3, bit 2 of the I/O
address is written into this bit to indicate whether
IDR3 contains data or a command.
0: Content of input data register (IDR3) is a data
1: Content of input data register (IDR3) is a
command
2
DBU32
0
R/W
R
Defined by User
The user can use this bit as necessary.
1
IBF3A
0
R
R
Input Buffer Full
This bit is an internal interrupt source to the slave
(this LSI).
0: [Clearing condition]
When the slave reads IDR3
1: [Setting condition]
When the host writes to IDR3 in I/O write cycle
0 OBF3A
0
R/(W)
*
R
Output Buffer Full
0: [Clearing conditions]
•
When the host reads ODR3 in I/O read cycle
•
When the slave writes 0 to the OBF3 bit
1: [Setting condition]
When the slave writes to ODR3
Note:
*
Only 0 can be written to clear the flag.
Содержание H8S/2100 Series
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Страница 92: ...Section 2 CPU Rev 1 00 Apr 28 2008 Page 66 of 994 REJ09B0452 0100...
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Страница 354: ...Section 11 16 Bit Cycle Measurement Timer TCM Rev 1 00 Apr 28 2008 Page 328 of 994 REJ09B0452 0100...
Страница 380: ...Section 12 16 Bit Duty Period Measurement Timer TDP Rev 1 00 Apr 28 2008 Page 354 of 994 REJ09B0452 0100...
Страница 416: ...Section 13 8 Bit Timer TMR Rev 1 00 Apr 28 2008 Page 390 of 994 REJ09B0452 0100...
Страница 494: ...Section 15 Serial Communication Interface SCI Rev 1 00 Apr 28 2008 Page 468 of 994 REJ09B0452 0100...
Страница 612: ...Section 18 I 2 C Bus Interface IIC Rev 1 00 Apr 28 2008 Page 586 of 994 REJ09B0452 0100...
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Страница 774: ...Section 23 RAM Rev 1 00 Apr 28 2008 Page 748 of 994 REJ09B0452 0100...
Страница 1008: ...Section 28 Electrical Characteristics Rev 1 00 Apr 28 2008 Page 982 of 994 REJ09B0452 0100...
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