參數(shù)資料
型號: 8XC562
廠商: NXP Semiconductors N.V.
英文描述: 80C51 FAMILY DERIVATIVES
中文描述: 80C51系列衍生物
文件頁數(shù): 28/60頁
文件大?。?/td> 382K
代理商: 8XC562
Philips Semiconductors
80C51 Family Derivatives
8XC552/562 overview
1996 Aug 06
28
Table 7.
Miscellaneous States
STATUS
STATUS OF THE
I
2
C BUS AND
APPLICATION SOFTWARE RESPONSE
CODE
TO/FROM S1DAT
TO S1CON
NEXT ACTION TAKEN BY SIO1 HARDWARE
(S1STA)
SIO1 HARDWARE
STA
STO
SI
AA
F8H
No relevant state
information available;
SI = 0
No S1DAT action
No S1CON action
Wait or proceed current transfer
00H
Bus error during MST or
selected slave modes,
due to an illegal START
or STOP condition. State
00H can also occur
when interference
causes SIO1 to enter an
undefined state.
No S1DAT action
0
1
0
X
Only the internal hardware is affected in the
MST or addressed SLV modes. In all cases,
the bus is released and SIO1 is switched to the
not addressed SLV mode. STO is reset.
S
08H
SLA
W
A
Data
A
S
Other MST Continues
P
S
SLA
18H
28H
08H
Other Master Sends Repeated
START Condition Earlier
Retry
Figure 21. Simultaneous Repeated START Conditions from 2 Masters
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