em78f644nso28s ELAN Microelectronics Corp, em78f644nso28s Datasheet - Page 116

• Manufacturer Part Number: em78f644nso28s
• Description: Flash Series 8-bit Microcontroller
• Manufacturer: ELAN Microelectronics Corp

EM78F648/644/642/641/548/544/542/541N
8-Bit Microcontroller
106 •
R_BANK Address Name
Bank 1
Bank 1
Bank 1
Bank 1
Bank 1
Bank 1
Bank 0
Bank 0
0X23
0X24
0X25
0X26
0X27
0X28
0x0E
0x1E
6.8 I2C Function
SDA
SCL
FULL
Buffer Full Detector
EM78F648N/F548N Registers for I2C Circuit
I2CCR1
I2CCR2
I2CSA
I2CDA
I2CDB
IMR3
I2CA
ISR3
Figure 6-18a EM78F648N/F548N I2C Block Diagram
I2CRIF
Strobe/
Bit 7
Pend
R/W
SA6
R/W
DA7
DB7
R/W
R
R
R
0
0
0
0
Read
Bit 6
R/W
SA5
R/W
DA6
R/W
DB6
R/W
R/W
IMS
R
R
R
0
0
0
0
MSb
Start and Stop
Match Detect
I2CDB reg
I2CDA reg
I2CSA reg
bit Detect
Bit 5
R/W
SA4
R/W
DA5
R/W
DB5
R/W
R/W
ISS
R
R
R
0
0
0
0
Write
(This specification is subject to change without further notice)
STOP
Bit 4
R/W
SA3
R/W
DA4
R/W
DB4
R/W
R/W
R
R
R
0
0
0
0
LSb
Product Specification (V1.0) 05.05.2010
Add Match
EMPTY
I2CTS1
I2CTIF
SAR_
Bit 3
R/W
R/W
SA2
R/W
DA3
DB3
R/W
R/W
R/W
R
R
0
0
0
Control and
Status reg
PWMCIE
PWMCIF
I2CTS0
Bit 2
ACK
R/W
R/W
R/W
DA2
DB2
R/W
R/W
SA1
R/W
R/W
R/W
0
I2CRIF
I2CRIE
I2CCS
FULL
Bit 1
DA1
DB1
DA9
R/W
R/W
SA0
R/W
R/W
R/W
R/W
R/W
R/W
EMPTY
I2CTIF
I2CTIE
I2CEN
Bit 0
DA0
DB0
DA8
R/W
R/W
IRW
R/W
R/W
R/W
R/W
R/W
R/W