AT89C51RE2-SLRUM Atmel, AT89C51RE2-SLRUM Datasheet - Page 142

• Manufacturer Part Number: AT89C51RE2-SLRUM
• Description: MCU 8051 128K FLASH 44-PLCC
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51RE2-SLRUM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 60MHz
• Connectivity: I²C, SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 34
• Program Memory Size: 128KB (128K x 8)
• Program Memory Type: FLASH
• Ram Size: 8K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Processor Series: AT89x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 8 KB
• Interface Type: UART, SPI
• Maximum Clock Frequency: 60 MHz
• Number Of Programmable I/os: 34
• Number Of Timers: 3
• Operating Supply Voltage: 2.7 V to 5.5 V
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Development Tools By Supplier: AT89OCD-01
• For Use With: AT89STK-11 - KIT STARTER FOR AT89C51RX2
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details

Table 104. Status in Slave Receiver Mode
142
(SSCS)
Status
Code
60h
68h
70h
78h
80h
88h
90h
AT89C51RE2
Status of the 2-wire bus and
Arbitration lost in SLA+R/W as
master; own SLA+W has been
General call address has been
Arbitration lost in SLA+R/W as
received; NOT ACK has been
master; general call address
has been received; ACK has
own SLA+W; data has been
own SLA+W; data has been
general call; data has been
Previously addressed with
Previously addressed with
Previously addressed with
received; ACK has been
received; ACK has been
received; ACK has been
received; ACK has been
received; ACK has been
Own SLA+W has been
2-wire hardware
been returned
returned
returned
returned
returned
returned
returned
No SSDAT action or
No SSDAT action or
No SSDAT action or
No SSDAT action or
No SSDAT action or
Read data byte or
Read data byte or
Read data byte or
Read data byte or
No SSDAT action
No SSDAT action
No SSDAT action
No SSDAT action
No SSDAT action
To/from SSDAT
Read data byte
Read data byte
Application Software Response
STA
X
X
X
X
X
X
X
X
X
X
0
0
1
1
X
X
To SSCON
STO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SI
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
AA
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Next Action Taken By 2-wire Software
Data byte will be received and NOT ACK will be
returned
Data byte will be received and ACK will be
returned
Data byte will be received and NOT ACK will be
returned
Data byte will be received and ACK will be
returned
Data byte will be received and NOT ACK will be
returned
Data byte will be received and ACK will be
returned
Data byte will be received and NOT ACK will be
returned
Data byte will be received and ACK will be
returned
Data byte will be received and NOT ACK will be
returned
Data byte will be received and ACK will be
returned
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
Data byte will be received and NOT ACK will be
returned
Data byte will be received and ACK will be
returned
7663D–8051–10/08