參數資料
型號: W742E811
文件頁數: 31/66頁
文件大?。?/td> 303K
代理商: W742E811
Preliminary W742C(E)811
Publication Release Date: May 1999
- 31 -
Revision A1
Divider 0, Divider 1, Timer
0, Timer 1, Signal Change at
RC,RD port, falling edge at
P1.2,P1.3, Serial I/O
In
HOLD
Mode
IEF
Flag Set
PC <- (PC+1)
IEF
Flag Set
No
Yes
No
Yes
Yes
No
Yes
(Hold release)
No
HOLD
HEF
Flag Set
Reset EVF Flag
Execute
Interrupt Service Routine
Reset EVF Flag
Execute
Interrupt Service Routine
Interrupt
Enable
Interrupt
Enable
Yes
Yes
No
No
Disable interrupt
Disable interrupt
(Note)
(Note)
Note: The bit of EVF corresponding to the interrupt signal will be reset.
** The RD port can not occur interrupt service , it only can release hold mode.
Figure 5-9 Hold Mode and Interrupt Operation Flow Chart
5.15.1 Hold Mode Release Enable Flag (HEF,HEFD)
The hold mode release enable flag is organized on an 8-bit binary register (HEF.0 to HEF.7) and a 1-bit
register(HEFD). The HEF and HEFD are used to control the hold mode release conditions. It is
controlled by the MOV HEF, #I, MOV HEFD,#I instructions. The bit descriptions are as follows:
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