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Rev. 2.0, 11/00, page 538 of 1037
25.2.6
I
2
C Bus Status Register (ICSR)
7
ESTP
0
R/(W)
*
6
STOP
0
R/(W)
*
5
IRTR
0
R/(W)
*
4
AASX
0
R/(W)
*
3
AL
0
R/(W)
*
0
ACKB
0
R/W
2
AAS
0
R/(W)
*
1
ADZ
0
R/(W)
*
Note:
*
Only 0 can be written to clear the flag.
Bit :
Initial value :
R/W :
ICSR is an 8-bit readable/writable register that performs flag confirmation and acknowledge
confirmation and control.
ICSR is initialized to H'00 by a reset.
Bit 7: Error Stop Condition Detection Flag (ESTP)
Indicates that a stop condition has been detected during frame transfer in I
2
C bus format slave
mode.
Bit 7
ESTP
Description
0
No error stop condition
(Initial value)
[Clearing condition]
(1) When 0 is written in ESTP after reading ESTP = 1
(2) When the IRIC flag is cleared to 0
1
In I
2
C bus format slave mode
Error stop condition detected
[Setting condition]
•
When a stop condition is detected during frame transfer
In other modes
No meaning
Содержание Hitachi H8S/2191
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Страница 639: ...Rev 2 0 11 00 page 612 of 1037 28 1 2 Block Diagram Figure 28 1 shows a block diagram of the servo circuits...
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