AT89C5132 Atmel Corporation, AT89C5132 Datasheet - Page 142

• Manufacturer Part Number: AT89C5132
• Manufacturer: Atmel Corporation

Specifications of AT89C5132

• Flash (kbytes): 64 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-12C
• Max I/o Pins: 44
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device
• Spi: 1
• Uart: 1
• Adc Channels: 2
• Adc Resolution (bits): 10
• Adc Speed (ksps): 22.7
• Sram (kbytes): 2.25
• Self Program Memory: API
• Operating Voltage (vcc): 2.7 to 3.6
• Timers: 2
• Isp: UART/USB
• Watchdog: Yes

Table 22. Status for Slave Receiver Mode with Own Slave Address
142
SSSTA
Status
Code
A0h
60h
68h
80h
88h
Status of the TWI Bus
and TWI Hardware
Own SLA+W has been
received; ACK has
been returned
Arbitration lost in
SLA+R/W as master;
own SLA+W has been
received; ACK has
been returned
Previously addressed
with own SLA+W; data
has been received;
ACK has been
returned
Previously addressed
with own SLA+W; data
has been received;
NOT ACK has been
returned
A STOP condition or
repeated START
condition has been
received while still
addressed as slave
AT89C5132
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.
4173E–USB–09/07