C8051F988-GM Silicon Laboratories Inc, C8051F988-GM Datasheet - Page 242
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C8051F988-GM
Manufacturer Part Number
C8051F988-GM
Description
IC MCU 8BIT 4KB FLASH 24QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F9xxr
Specifications of C8051F988-GM
Program Memory Type
FLASH
Program Memory Size
4KB (4K x 8)
Package / Case
24-UQFN Exposed Pad, 24-HUQFN
Core Processor
8051
Core Size
8-Bit
Speed
25MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT
Number Of I /o
17
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 10x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Processor Series
C8051F9x
Core
8051
Data Ram Size
512 B
Interface Type
I2C, SMBus, Enhanced UART, Enhanced SPI
Maximum Clock Frequency
7 KHz
Number Of Programmable I/os
17
Number Of Timers
4
Operating Supply Voltage
2.4 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F996DK
Minimum Operating Temperature
- 40 C
On-chip Adc
10 bit, 10 Channel
On-chip Dac
10 bit, 4 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1959-5
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C8051F99x-C8051F98x
SFR Definition 22.2. SMB0CN: SMBus Control
SFR Page = 0x0; SFR Address = 0xC0; Bit-Addressable
242
Name
Reset
Bit
Type
7
6
5
4
3
2
1
0
Bit
ARBLOST SMBus Arbitration Lost
TXMODE SMBus Transmit Mode
MASTER SMBus Master/Slave
ACKRQ
Name
MASTER
STO
ACK
STA
SI
R
7
0
Indicator. This read-only bit
indicates when the SMBus is
operating as a master.
Indicator. This read-only bit
indicates when the SMBus is
operating as a transmitter.
SMBus Start Flag.
SMBus Stop Flag.
SMBus Acknowledge
Request.
Indicator.
SMBus Acknowledge.
SMBus Interrupt Flag.
This bit is set by hardware
under the conditions listed in
Table 15.3. SI must be cleared
by software. While SI is set,
SCL is held low and the
SMBus is stalled.
TXMODE
R
6
0
Description
R/W
STA
5
0
STO
R/W
Rev. 1.0
0: SMBus operating in
slave mode.
1: SMBus operating in
master mode.
0: SMBus in Receiver
Mode.
1: SMBus in Transmitter
Mode.
0: No Start or repeated
Start detected.
1: Start or repeated Start
detected.
0: No Stop condition
detected.
1: Stop condition detected
(if in Slave Mode) or pend-
ing (if in Master Mode).
0: No Ack requested
1: ACK requested
0: No arbitration error.
1: Arbitration Lost
0: NACK received.
1: ACK received.
0: No interrupt pending
1: Interrupt Pending
4
0
ACKRQ
Read
R
3
0
ARBLOST
R
2
0
N/A
N/A
0: No Start generated.
1: When Configured as a
Master, initiates a START
or repeated START.
0: No STOP condition is
transmitted.
1: When configured as a
Master, causes a STOP
condition to be transmit-
ted after the next ACK
cycle.
Cleared by Hardware.
N/A
N/A
0: Send NACK
1: Send ACK
0: Clear interrupt, and initi-
ate next state machine
event.
1: Force interrupt.
ACK
R/W
1
0
Write
R/W
SI
0
0
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