I2C BUS INTERFACE
2
I C BUS INTERFACE (Cont’d)
2
Table 51. I C BUS Register Map and Reset Values
Address
(Hex.)
Register
Name
7
6
5
4
3
2
1
0
I2CCR
-
-
PE
0
ENGC
0
START
0
ACK
0
STOP
0
ITE
0
F0h
F1h
F2h
F3h
F4h
F5h
F6h
F7h
F8h
F9h
FAh
FBh
FCh
FDh
FEh
FFh
Reset Value
0
0
I2CSR1
EVF
0
ADD10
0
TRA
0
BUSY
0
BTF
0
ADSL
0
M/SL
0
SB
0
Reset Value
I2CSR2
-
0
0
ADDTX
0
AF
0
STOPF
0
ARLO
0
BERR
0
GCAL
0
Reset Value
0
I2CCCR
FM/SM
0
CC6
0
CC5
0
CC4
0
CC3
0
CC2
0
CC1
0
CC0
0
Reset Value
I2COAR1
ADD7
0
ADD6
0
ADD5
0
ADD4
0
ADD3
0
ADD2
0
ADD1
0
ADD0
0
Reset Value
I2COAR2
FREQ1
0
FREQ0 EN10BIT FREQ2
0
0
ADD9
0
ADD8
0
0
0
Reset Value
0
0
0
I2CDR
DR7
0
DR6
0
DR5
0
DR4
0
DR3
0
DR2
0
DR1
0
DR0
0
Reset Value
I2CADR
ADR7
1
ADR6
0
ADR5
1
ADR4
0
ADR3
0
ADR2
0
ADR1
0
ADR0
0
Reset Value
I2CISR
DMASTOP
1
PRL2
X
PRL1
X
PRL0
X
IERRP
X
IRXP
X
ITXP
X
Reset Value
X
I2CIVR
V7
X
V6
X
V5
X
V4
X
V3
X
EV2
X
EV1
X
0
0
Reset Value
I2CRDAP
RA7
X
RA6
X
RA5
X
RA4
X
RA3
X
RA2
X
RA1
X
RPS
X
Reset Value
I2CRDC
RC7
X
RC6
X
RC5
X
RC4
X
RC3
X
RC2
X
RC1
X
RF/MEM
X
Reset Value
I2CTDAP
TA7
X
TA6
X
TA5
X
TA4
X
TA3
X
TA2
X
TA1
X
TPS
X
Reset Value
I2CTDC
TC7
X
TC6
X
TC5
X
TC4
X
TC3
X
TC2
X
TC1
X
RF/MEM
X
Reset Value
0
0
0
0
0
0
0
0
0
0
0
0
CC8
0
CC7
0
I2CECCR
I2CIMR
RXDM
0
TXDM
0
REOBP
X
TEOBP
X
IERRM
0
IRXM
0
ITXM
0
Reset Value
0
10.8.8 IMPORTANT NOTES ON I2C
Please refer to Section 13.1.3 on page 410
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STMICROELECTRONICS [ ST ]
