FR65E Datasheet, PDF (57/87 Pages) Fujitsu Component Limited. – 32-Bit Microcontroller

MB91307B
8. I²C Interface
(1) Overview
The I²C interface operates as a master/slave device on the I²C bus at serial I/O ports with IC bus support. The
following features are provided.
• Master/slave sending and receiving
• Arbitration function
• Clock synchronization function
• Slave address/general call address detection function
• Transfer direction detection function
• Start condition repeat generation and detection function
• Bus error detection function
• 10-bit / 7-bit master/slave addressing
• Compatible with standard mode (Max 100 Kbps) or high speed mode (Max 400 Kbps)
• Transfer end interrupt / bus error interrupt generation
(2) Register List
• Bus Control Register (IBCR)
Address : 000094H
15
14
13
12
11
10
9
8
BER BEIE SCC MSS ACK GCAA INTE INT
Default value →
R/W
0
R/W
0
R/W
0
R/W
0
R/W
0
R/W R/W R/W
0
0
0
• Bus Status Register (IBSR)
Address : 000095H
7
6
5
BB RSC AL
4
3
2
1
0
LRB TRX AAS GCA ADT
Default value →
R
0
R
0
R
0
R
0
R
0
R
R
R
0
0
0
• 10-Bit Slave Address Register
Address : 000096H
15
14
13
12
11
10
9
8






TA9 TA8
Default value → _




R/W R/W

0
0
Address : 000097H
7
6
5
4
3
2
1
0
TA7 TA6 TA5 TA4 TA3 TA2 TA1 TA0
Default value →
R/W
0
R/W R/W
0
0
R/W
0
R/W
0
R/W R/W R/W
0
0
0
(Continued)
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