AT89C51ID2 Atmel Corporation, AT89C51ID2 Datasheet - Page 92

• Manufacturer Part Number: AT89C51ID2
• Manufacturer: Atmel Corporation

Specifications of AT89C51ID2

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 60 MHz
• Cpu: 8051-12C
• Max I/o Pins: 32
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Sram (kbytes): 2
• Eeprom (bytes): 2048
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 5.5
• Timers: 4
• Isp: UART
• Watchdog: Yes

Table 68. Status in Slave Receiver Mode (Continued)
4289C–8051–11/05
(SSCS)
Status
Code
98h
A0h
Status of the 2-wire bus and
A STOP condition or repeated
received; NOT ACK has been
received while still addressed
general call; data has been
START condition has been
Previously addressed with
2-wire hardware
returned
as slave
No SSDAT action or
No SSDAT action or
No SSDAT action or
Read data byte or
Read data byte or
Read data byte or
No SSDAT action
To/from SSDAT
Read data byte
Application Software Response
STA
0
0
1
1
0
0
1
1
To SSCON
STO
0
0
0
0
0
0
0
0
SI
0
0
0
0
0
0
0
0
AA
0
1
0
1
0
1
0
1
Next Action Taken By 2-wire Software
Switched to the not addressed slave mode; no
recognition of own SLA or GCA
Switched to the not addressed slave mode; own
SLA will be recognised; GCA will be recognised if
GC=logic 1
Switched to the not addressed slave mode; no
recognition of own SLA or GCA. A START
condition will be transmitted when the bus
becomes free
Switched to the not addressed slave mode; own
SLA will be recognised; GCA will be recognised if
GC=logic 1. A START condition will be
transmitted when the bus becomes free
Switched to the not addressed slave mode; no
recognition of own SLA or GCA
Switched to the not addressed slave mode; own
SLA will be recognised; GCA will be recognised if
GC=logic 1
Switched to the not addressed slave mode; no
recognition of own SLA or GCA. A START
condition will be transmitted when the bus
becomes free
Switched to the not addressed slave mode; own
SLA will be recognised; GCA will be recognised if
GC=logic 1. A START condition will be
transmitted when the bus becomes free
AT89C51ID2
92