AT89C51SND1C-7HTUL Atmel, AT89C51SND1C-7HTUL Datasheet - Page 170

• Manufacturer Part Number: AT89C51SND1C-7HTUL
• Description: IC MCU 64KB FLASH MEM 81-CBGA
• Manufacturer: Atmel
• Series: 89Cr

Specifications of AT89C51SND1C-7HTUL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: I²C, IDE/ATAPI, MMC, SPI, UART/USART, USB
• Peripherals: Audio, I²S, MP3, PCM, POR, WDT
• Number Of I /o: 44
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 2.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.3 V
• Data Converters: A/D 2x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 81-CBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -

Table 140. Status for Slave Receiver Mode with General Call Address
170
SSSTA
Status
Code
A0h
70h
78h
90h
98h
Status of the TWI Bus
and TWI Hardware
General call address
has been received;
ACK has been
returned
Arbitration lost in
SLA+R/W as master;
general call address
has been received;
ACK has been
returned
Previously addressed
with general call; data
has been received;
ACK has been
returned
Previously addressed
with general call; data
has been received;
NOT ACK has been
returned
A STOP condition or
repeated START
condition has been
received while still
addressed as slave
AT8xC51SND1C
To/From SSDAT
No SSDAT action
No SSDAT action
No SSDAT action
No SSDAT action
Read data Byte
Read data Byte
Read data Byte
Read data Byte
Read data Byte
Read data Byte
No SSDAT action
No SSDAT action
No SSDAT action
No SSDAT action
Application Software Response
SSSTA
X
X
X
X
X
X
0
0
1
1
0
0
1
1
SSSTO
To SSCON
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SSI
0
0
0
0
0
0
0
0
0
0
0
0
0
0
SSAA
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Next Action Taken by TWI Hardware
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 recognized; GCA will be recognized if
SSGC = 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 recognized; GCA will be recognized if
SSGC = 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 recognized; GCA will be recognized if
SSGC = 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 recognized; GCA will be recognized if
SSGC = logic 1. A START condition will be
transmitted when the bus becomes free.
4109L–8051–02/08