ML51/ML54/ML56
Sep. 01, 2020
Page
183
of 719
Rev 2.00
ML
51
/ML
54
/ML
5
6 S
E
RI
E
S
TECHNI
CA
L
RE
F
E
R
E
NC
E
M
A
NU
A
L
ML51/M
L54
/M
L56
Series
Tec
hnical Reference
Manual
I2CnSTAT
– I
2
C Status
Register
SFR Address
Reset Value
I2C0STAT
BDH, Page 0
1111_1000 b
I2C1STAT
B4H, Page 0
1111_1000 b
7
6
5
4
3
2
1
0
I2CnSTAT[7:3]
0
0
0
R
R
R
R
Bit
Name
Description
[7:3]
I2CnSTAT[7:3]
I2Cn Status Code
The MSB five bits of I2CnSTAT contains the status code. There are 27 possible status
codes. When I2CnSTAT is F8H, no relevant state information is available and SI flag
keeps 0. All other 26 status codes correspond to the I
2
C states. When each of these
status is entered, SI will be set as logic 1 and a interrupt is requested.
[2:0]
0
Reserved
The least significant three bits of I2CnSTAT are always read as 0.