AT89C51ID2 Atmel Corporation, AT89C51ID2 Datasheet - Page 94
AT89C51ID2
Manufacturer Part Number
AT89C51ID2
Description
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
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Company
Part Number
Manufacturer
Quantity
Price
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Part Number:
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Manufacturer:
ATMEL
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3 233
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Company:
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5 510
Company:
Part Number:
AT89C51ID2-SLSIM
Manufacturer:
TI
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Company:
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Manufacturer:
BROADCOM
Quantity:
2 000
Table 69. Status in Slave Transmitter Mode (Continued)
4289C–8051–11/05
(SSCS)
Status
Code
C0h
C8h
Status of the 2-wire bus and
been transmitted (AA=0); ACK
Data byte in SSDAT has been
Last data byte in SSDAT has
transmitted; NOT ACK has
has been received
2-wire hardware
been received
Table 70.
(SSCS)
Status
Code
F8h
00h
No SSDAT action or
No SSDAT action or
No SSDAT action or
No SSDAT action or
No SSDAT action or
No SSDAT action or
No SSDAT action
No SSDAT action
To/from SSDAT
Status of the 2-wire
Bus error due to an
Miscellaneous Status
No relevant state
bus and 2-wire
Application Software Response
illegal START or
STOP condition
available; SI= 0
information
hardware
STA
0
0
1
1
0
0
1
1
No SSDAT
No SSDAT
To SSCON
STO
Application Software Response
To/from
SSDAT
action
action
0
0
0
0
0
0
0
0
SI
0
0
0
0
0
0
0
0
STA STO
AA
0
1
0
1
0
1
0
1
0
No SSCON action
To SSCON
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
1
SI
0
AA
X
Next Action Taken By 2-wire
Software
Wait or proceed current transfer
Only the internal hardware is
affected, no STOP condition is
sent on the bus. In all cases,
the bus is released and STO is
reset.
AT89C51ID2
94