16-22
Seiko Epson Corporation
S1C31D50 TECHNICAL MANUAL
(Rev. 1.00)
I2C Ch.
n
Mode Register
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
I2C_
n
MOD
15
–
8
–
0x00
–
R
–
7
–
3
–
0x00
–
R
2
OADR10
0
H0
R/W
1
GCEN
0
H0
R/W
0
–
0
–
R
Bits 15
–
3
Reserved
Bit 2
OADR10
This bit sets the number of own address bits for slave mode.
1 (R/W): 10-bit address
0 (R/W): 7-bit address
Bit 1
GCEN
This bit sets whether to respond to master general calls in slave mode or not.
1 (R/W): Respond to general calls.
0 (R/W): Do not respond to general calls.
Bit 0
Reserved
Note:
The I2C_
n
MOD register settings can be altered only when the I2C_
n
CTL.MODEN bit = 0.
I2C Ch.
n
Baud-Rate Register
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
I2C_
n
BR
15
–
8
–
0x00
–
R
–
7
–
0
–
R
6
–
0
BRT[6:0]
0x7f
H0
R/W
Bits 15
–
7
Reserved
Bits 6
–
0
BRT[6:0]
These bits set the I2C Ch.
n
transfer rate for master mode. For more information, refer to
“Baud
Rate Generator.
”
Notes:
•
The I2C_
n
BR register settings can be altered only when the I2C_
n
CTL.MODEN bit = 0.
•
Be sure to avoid setting the I2C_
n
BR register to 0.
I2C Ch.
n
Own Address Register
Register name
Bit
Bit name
Initial
Reset
R/W
Remarks
I2C_
n
OADR
15
–
10
–
0x00
–
R
–
9
–
0
OADR[9:0]
0x000
H0
R/W
Bits 15
–
10 Reserved
Bits 9
–
0
OADR[9:0]
These bits set the own address for slave mode.
The I2C_
n
OADR.OADR[9:0] bits are effective in 10-bit address mode (I2C_
n
MOD.OADR10 bit
= 1), or the I2C_
n
OADR.OADR[6:0] bits are effective in 7-bit address mode
(I2C_
n
MOD.OADR10 bit = 0).
Note:
The I2C_
n
OADR register settings can be altered only when the I2C_
n
CTL.MODEN bit = 0.
Summary of Contents for S1C31D50
Page 461: ...25 1 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 25 Package TQFP12 48PIN ...
Page 462: ...25 2 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 QFP13 64PIN ...
Page 463: ...25 3 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 TQFP14 80PIN ...
Page 464: ...25 4 Seiko Epson Corporation S1C31D50 TECHNICAL MANUAL Rev 1 00 QFP15 100PIN ...