I 2 C Interface Registers - Fujitsu MB90390 Series Hardware Manual

CHAPTER 21 400 kHz I
2
21.2 I C Interface Registers
This section describes the function of the I
2
■ I
C Interface Registers
Bus Control Register (IBCR)
Bus Status Register (IBSR)
Ten Bit slave Address register (ITBA)
Ten bit slave address MasK register (ITMK)
Seven Bit slave Address register (ISBA)
R/ W : Readable and writable
R : Read only
W : Write only
- : Undefined
408
2
C INTERFACE
bit 15
Address:
BER BEIE SCC MSS ACK GCAA INTE
0035A1
H
R/W R/W W R/W
bit
7
Address:
BB
0035A0
H
R
bit
15
0035A3
H -
-
bit
7
TA7 TA6 TA5 TA4 TA3 TA2 TA1 TA0
0035A2
H
R/W R/W R/W R/W
bit
15
0035A5
H ENTB RAL
R/W R/W -
bit 7
TM7 TM6 TM5 TM4 TM3 TM2 TM1TM0
0035A4
H
R/W R/W R/W R/W
bit
7
-
0035A6
H
-
2
C interface registers in detail.
14 13 12 11 10 9
R/W R/W R/W R/W
6 5 4 3 2 1
RSC AL LRB TRX AAS GCA
R R R R R R
14 13 12 11 10 9
- - - - - TA9 TA8
- - - - -
R/W R/W
6 5 4 3 2 1
R/W R/W R/W R/W
14 13 12 11 10 9
- - - - TM9 TM8
- - -
R/W R/W
6 5 4 3 2 1
R/W R/W R/W R/W
6 5 4 3 2 1
SA6 SA5 SA4 SA3 SA2 SA1 SA0
R/W R/W R/W R/W R/W R/W R/W
8
IBCR
INT
Initial value
0 0 0 0 0 0 0 0
B
0
IBSR
ADT
Initial value
0 0 0 0 0 0 0 0
B
R
8
ITBAH (upper)
Initial value
0 0 0 0 0 0 0 0
B
0
ITBAL (lower)
Initial value
0 0 0 0 0 0 0 0
B
8
ITMKH (upper)
Initial value
0 0 1 1 1 1 1 1
B
0
ITMKL (lower)
Initial value
1 1 1 1 1 1 1 1
B
0
ISBA
Initial value
0 0 0 0 0 0 0 0
B