C8051F023 Silicon Laboratories Inc, C8051F023 Datasheet - Page 196

• Manufacturer Part Number: C8051F023
• Description: IC 8051 MCU 64K FLASH 64TQFP
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F02xr

Specifications of C8051F023

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
• Number Of I /o: 32
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 4.25K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Data Converters: A/D 8x8b, 8x10b; D/A 2x12b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-TQFP, 64-VQFP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Eeprom Size: -

C8051F020/1/2/3
196
Mode
Status
Code
0xA0
0xA8
0xB0
0xB8
0xC0
0xC8
0xD0
0x60
0x68
0x70
0x78
0x80
0x88
0x90
0x98
0x00
0xF8
Own slave address + W received. ACK trans-
mitted.
Arbitration lost in sending SLA + R/W as mas-
ter. Own address + W received. ACK transmit-
ted.
General call address received. ACK transmit-
ted.
Arbitration lost in sending SLA + R/W as mas-
ter. General call address received. ACK trans-
mitted.
Data byte received. ACK transmitted.
Data byte received. NACK transmitted.
Data byte received after general call address.
ACK transmitted.
Data byte received after general call address.
NACK transmitted.
STOP or repeated START received.
Own address + R received. ACK transmitted.
Arbitration lost in transmitting SLA + R/W as
master. Own address + R received. ACK
transmitted.
Data byte transmitted. ACK received.
Data byte transmitted. NACK received.
Last data byte transmitted (AA=0). ACK
received.
SCL Clock High Timer per SMB0CR timed out
Bus Error (illegal START or STOP)
Idle
Table 18.1. SMB0STA Status Codes and States
SMBus State
Rev. 1.4
Wait for data.
Save current data for retry when bus is
free. Wait for data.
Wait for data.
Save current data for retry when bus is
free.
Read SMB0DAT. Wait for next byte or
STOP.
Set STO to reset SMBus.
Read SMB0DAT. Wait for next byte or
STOP.
Set STO to reset SMBus.
No action necessary.
Load SMB0DAT with data to transmit.
Save current data for retry when bus is
free. Load SMB0DAT with data to trans-
mit.
Load SMB0DAT with data to transmit.
Wait for STOP.
Set STO to reset SMBus.
Set STO to reset SMBus.
Set STO to reset SMBus.
State does not set SI.
Typical Action