MS51
Dec. 17, 2019
Page
183
of 316
Rev 1.01
M
S51
SE
RIES
TE
CHNICA
L REF
ERE
N
CE MA
NU
A
L
Bit
Name
Description
3:0
FCTRL[3:0]
IAPAH
– IAP Address High Byte
Regiser
Address
Reset Value
IAPAH
A7H, all pages
0000_0000b
7
6
5
4
3
2
1
0
IAPA[15:8]
R/W
Bit
Name
Description
7:0
IAPA[15:8]
IAP address high byte
IAPAH contains address IAPA[15:8] for IAP operations.
IAPAL
– IAP Address Low Byte
Regiser
Address
Reset Value
IAPAL
A6H, all pages
0000_0000b
7
6
5
4
3
2
1
0
IAPA[7:0]
R/W
Bit
Name
Description
7:0
IAPA[7:0]
IAP address low byte
IAPAL contains address IAPA[7:0] for IAP operations.
IAPFD
– IAP Flash Data
Regiser
Address
Reset Value
IAPFD
AEH, all pages
0000_0000b
7
6
5
4
3
2
1
0
IAPFD[7:0]
R/W
Bit
Name
Description
7:0
IAPFD[7:0]
IAP flash data
This byte contains flash data, which is read from or is going to be written to the Flash Memory.
User should write data into IAPFD for program mode before triggering IAP processing and read
data from IAPFD for read/verify mode after IAP processing is finished.
IAPTRG
– IAP Trigger
Regiser
Address
Reset Value
