C8051F503-IQ Silicon Laboratories Inc, C8051F503-IQ Datasheet - Page 234
![IC 8051 MCU 64K FLASH 32-QFP](/photos/12/35/123593/c8051f503-iq_sml.jpg)
C8051F503-IQ
Manufacturer Part Number
C8051F503-IQ
Description
IC 8051 MCU 64K FLASH 32-QFP
Manufacturer
Silicon Laboratories Inc
Series
C8051F50xr
Datasheets
1.C8051F507-IM.pdf
(312 pages)
2.C8051F503-IM.pdf
(1 pages)
3.C8051F503-IM.pdf
(312 pages)
Specifications of C8051F503-IQ
Program Memory Type
FLASH
Program Memory Size
64KB (64K x 8)
Package / Case
32-QFP
Mfg Application Notes
LIN Bootloader AppNote
Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
SMBus (2-Wire/I²C), SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
25
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.25 V
Data Converters
A/D 25x12b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Processor Series
C8051F5x
Core
8051
Data Bus Width
8 bit
Data Ram Size
4.25 KB
Interface Type
I2C, SPI, UART
Maximum Clock Frequency
50 MHz
Number Of Programmable I/os
25
Number Of Timers
4
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
3rd Party Development Tools
PK51, CA51, A51, ULINK2
Development Tools By Supplier
C8051F500DK
Minimum Operating Temperature
- 40 C
On-chip Adc
12 bit, 32 Channel
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
For Use With
336-1527 - KIT DEV FOR C8051F50X
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1516
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F503-IQ
Manufacturer:
WOLFSON
Quantity:
4 300
Company:
Part Number:
C8051F503-IQ
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
Company:
Part Number:
C8051F503-IQR
Manufacturer:
Silicon Laboratories Inc
Quantity:
10 000
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C8051F50x/F51x
SFR Definition 23.2. SMB0CN: SMBus Control
SFR Address = 0xC0; Bit-Addressable; SFR Page =0x00
234
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
STA
R/W
5
0
STO
R/W
Rev. 1.2
4
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
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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