C8051F337-GM Silicon Laboratories Inc, C8051F337-GM Datasheet - Page 155

• Manufacturer Part Number: C8051F337-GM
• Description: IC MCU 16K FLASH 20QFN
• Manufacturer: Silicon Laboratories Inc
• Series: C8051F33xr

Specifications of C8051F337-GM

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 25MHz
• Connectivity: SMBus (2-Wire/I²C), SPI, UART/USART
• Peripherals: POR, PWM, WDT
• Number Of I /o: 17
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 768 x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 3.6 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 20-QFN
• Processor Series: C8051F3x
• Core: 8051
• Data Bus Width: 8 bit
• Data Ram Size: 768 B
• Interface Type: I2C, SPI, UART
• Maximum Clock Frequency: 25 MHz
• Number Of Programmable I/os: 17
• Number Of Timers: 4
• Operating Supply Voltage: 2.7 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: KSK-SL-TOOLSTICK, PK51, CA51, A51, ULINK2
• Development Tools By Supplier: C8051F336DK
• Minimum Operating Temperature: - 40 C
• For Use With: 336-1451 - ADAPTER PROGRAM TOOLSTICK F330
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details
• Other names: 336-1428-5

Table 21.5. SMBus Status Decoding With Hardware ACK Generation Disabled
1100
1000 1
1110
Values Read
0
0
0
0 X
0
0
0 X
0
1
A master START was gener-
ated.
A master data or address byte
was transmitted; NACK
received.
A master data or address byte
was transmitted; ACK
received.
A master data byte was
received; ACK requested.
Current SMbus State
(EHACK = 0)
Rev.1.0
Load slave address + R/W into
SMB0DAT.
Set STA to restart transfer.
Abort transfer.
Load next data byte into
SMB0DAT.
End transfer with STOP.
End transfer with STOP and start
another transfer.
Send repeated START.
Switch to Master Receiver Mode
(clear SI without writing new data
to SMB0DAT).
Acknowledge received byte;
Read SMB0DAT.
Send NACK to indicate last byte,
and send STOP.
Send NACK to indicate last byte,
and send STOP followed by
START.
Send ACK followed by repeated
START.
Send NACK to indicate last byte,
and send repeated START.
Send ACK and switch to Master
Transmitter Mode (write to
SMB0DAT before clearing SI).
Send NACK and switch to Mas-
ter Transmitter Mode (write to
SMB0DAT before clearing SI).
Typical Response Options
C8051F336/7/8/9
Values to
0
1
0
0
0
1
1
0
0
0
1
1
1
0
0
Write
0 X 1100
0 X
1 X
0 X 1100
1 X
1 X
0 X
0 X 1000
0 1
1 0
1 0
0 1
0 0
0 1
0 0
1000
1100
1100
1110
1110
1110
1110
1110
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