MS51
Nov. 28, 2019
Page
89
of 491
Rev 1.00
MS51
32K
SE
RIES
TE
CHNICAL RE
F
EREN
CE MA
N
UAL
IAPTRG
– IAP Trigger
Register
SFR Address
Reset Value
IAPTRG
A4H, Page 0, TA protected
0000 _0000 b
7
6
5
4
3
2
1
0
-
-
-
-
-
-
-
IAPGO
-
-
-
-
-
-
-
W
Bit
Name
Description
0
IAPGO
IAP go
IAP begins by setting this bit as logic 1. After this instruction, the CPU holds the Program Counter
(PC) and the IAP hardware automation takes over to control the progress. After IAP action
completed, the Program Counter continues to run the following instruction. The IAPGO bit will be
automatically cleared and always read as logic 0.
Before triggering an IAP action, interrupts (if enabled) should be temporary disabled for hardware
limitation.