HT85F2260 Datasheet, PDF (188/226 Pages) Holtek Semiconductor Inc – Standard 8051 8-Bit Flash MCU

Standard 8051 8-Bit Flash MCU
HT85F2260/HT85F2270/HT85F2280
Status
Code
Status of the I²C
Application software response
to/from
I2CDAT
to I2CCON
STA STO SI AA
Next action taken by
the I²C hardware
No action
Switched to “not addressed slave” mode;
0 0 0 0 no recognition of own slave address or general call
address
No action
STOP condition or repeated
START condition has
A0H been received while still
addressed as SLV/REC or ^{No action}
SLV/TRX
Switched to “not addressed slave” mode;
0 0 0 1 own slave address or general call address will be
recognized
Switched to “not addressed slave” mode;
no recognition of own slave address or general call
1 0 0 0 address;
START condition will be transmitted when the bus
becomes free
No action
Switched to “not addressed slave” mode;
own slave address or general call address will be
1 0 0 1 recognized;
START condition will be transmitted when the bus
becomes free
I²C Status in Slave Transmitter Mode
Status
Code
Status of the I²C
Application software response
to/from
I2CDAT
to I2CCON
STA STO SI AA
Next action taken by
the I²C hardware
Own SLA+R has been
A8H received;
ACK has been returned
Load data byte X
Load data byte X
0
0
0
Last data byte will be transmitted and ACK will be
received
0
0
1
Data byte will be transmitted;
ACK will be received
B0H
Arbitration lost in SLA+R/W _{Load data byte X}
as master own SLA+R has
been received;
ACK has been returned
Load data byte X
0
0
0
Last data byte will be transmitted and ACK will be
received
0
0
1
Data byte will be transmitted;
ACK will be received
Data byte has been
B8H transmitted;
ACK has been received
Load data byte X
Load data byte X
0
0
0
Last data byte will be transmitted and ACK will be
received
0 0 1 Data byte will be transmitted; ACK will be received
No action
Switched to “not addressed slave” mode;
0 0 0 0 no recognition of own slave address or general call
address
No action
Switched to “not addressed slave” mode;
0 0 0 1 own slave address or general call address will be
recognized
C0H
Data byte has been
transmitted;
not ACK has been received ^{No action}
Switched to “not addressed slave” mode;
no recognition of own slave address or general call
1 0 0 0 address;
START condition will be transmitted when the bus
becomes free
No action
Switched to “not addressed slave” mode;
own slave address or general call address will be
1 0 0 1 recognized;
START condition will be transmitted when the bus
becomes free
Rev. 1.00
188 of 226
May 15, 2013