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2
2. I
C Interface Registers
This section describes the function of the I
■ Bus Control Register (IBCR0)
Bus control register
Address : 0000D0
Read/write ⇒ (R/W) (R/W) (W) (R/W) (R/W) (R/W) (R/W) (R/W)
Default value⇒
■ Bus Status Register (IBSR0)
Bus status register
Address : 0000D1
Read/write ⇒
Default value⇒
■ Ten Bit slave Address register (ITBA0)
Ten Bit Address high byte
Address : 0000D2
Read/write ⇒
Default value⇒
Ten Bit Address low byte
Address : 0000D3
Read/write ⇒
Default value⇒
■ Ten bit slave address MasK register (ITMK0)
Ten Bit Address Mask high byte
Address : 0000D4
Read/write ⇒ (R/W) (R)
Default value⇒
Ten Bit Address Mask low byte
Address : 0000D5
Read/write ⇒
Default value⇒
2
C interface registers in detail.
15
14
13
BER BEIE SCC MSS ACK GCAA INTE
H
(0)
(0)
(0)
7
6
5
BB
RSC
AL
H
(R)
(R)
(R)
(0)
(0)
(0)
15
14
13
---
---
---
H
(-)
(-)
(-)
(0)
(0)
(0)
7
6
5
TA7
TA6
TA5
H
(R/W) (R/W) (R/W) (R/W) (R/W) (R/W) (R/W) (R/W)
(0)
(0)
(0)
15
14
13
ENTB RAL
---
H
(-)
(0)
(0)
(1)
7
6
5
TM7 TM6 TM5 TM4
H
(R/W) (R/W) (R/W) (R/W) (R/W) (R/W) (R/W) (R/W)
(1)
(1)
(1)
12
11
10
9
(0)
(0)
(0)
(0)
4
3
2
1
LRB
TRX
AAS GCA ADT
(R)
(R)
(R)
(R)
(0)
(0)
(0)
(0)
12
11
10
9
---
---
---
TA9
(-)
(-)
(-)
(R/W) (R/W)
(0)
(0)
(0)
(0)
4
3
2
1
TA4
TA3
TA2
TA1
(0)
(0)
(0)
(0)
12
11
10
9
---
---
---
TM9 TM8
(-)
(-)
(-)
(R/W) (R/W)
(1)
(1)
(1)
(1)
4
3
2
1
TM3
TM2
TM1 TM0
(1)
(1)
(1)
(1)
Chapter 33 I2C Controller
2.I2C Interface Registers
⇐ Bit no.
8
INT
IBCR0
(0)
⇐ Bit no.
0
IBSR0
(R)
(0)
⇐ Bit no.
8
ITBAH0
TA8
(0)
⇐ Bit no.
0
TA0
ITBAL0
(0)
⇐ Bit no.
8
ITMKH0
(1)
⇐ Bit no.
0
ITMKL0
(1)
667
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