C8051F500-IM Silicon Laboratories Inc, C8051F500-IM Datasheet - Page 219
![IC 8051 MCU 64K FLASH 48-QFN](/photos/12/36/123639/c8051f500-im_sml.jpg)
C8051F500-IM
Manufacturer Part Number
C8051F500-IM
Description
IC 8051 MCU 64K FLASH 48-QFN
Manufacturer
Silicon Laboratories Inc
Series
C8051F50xr
Specifications of C8051F500-IM
Program Memory Type
FLASH
Program Memory Size
64KB (64K x 8)
Package / Case
48-QFN
Mfg Application Notes
LIN Bootloader AppNote
Core Processor
8051
Core Size
8-Bit
Speed
50MHz
Connectivity
EBI/EMI, SMBus (2-Wire/I²C), CAN, LIN, SPI, UART/USART
Peripherals
POR, PWM, Temp Sensor, WDT
Number Of I /o
40
Ram Size
4.25K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.25 V
Data Converters
A/D 32x12b
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
40
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
336-1530 - ADAPTER PROG TOOLSTICK F500336-1529 - PLATFORM PROG TOOLSTCK F500336-1527 - KIT DEV FOR C8051F50X336-1526 - BOARD PROTOTYPE W/C8051F500
Eeprom Size
-
Lead Free Status / Rohs Status
Lead free / RoHS Compliant
Other names
336-1511-5
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
C8051F500-IM
Manufacturer:
Silicon Labs
Quantity:
135
Part Number:
C8051F500-IMR
Manufacturer:
SILICON LABS/芯科
Quantity:
20 000
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22.1. Bosch CAN Controller Operation
The CAN Controller featured in the C8051F500/2/4/6/8-F510 devices is a full implementation of Bosch’s
full CAN module and fully complies with CAN specification 2.0B. A block diagram of the CAN controller is
shown in Figure 22.2. The CAN Core provides shifting (CANTX and CANRX), serial/parallel conversion of
messages, and other protocol related tasks such as transmission of data and acceptance filtering. The
message RAM stores 32 message objects which can be received or transmitted on a CAN network. The
CAN registers and message handler provide an interface for data transfer and notification between the
CAN controller and the CIP-51.
The function and use of the CAN Controller is detailed in the Bosch CAN User’s Guide. The User’s Guide
should be used as a reference to configure and use the CAN controller. This data sheet describes how to
access the CAN controller.
All of the CAN controller registers are located on SFR Page 0x0C. Before accessing any of the CAN regis-
ters, the SFRPAGE register must be set to 0x0C.
The CAN Controller is typically initialized using the following steps:
1. Set the SFRPAGE register to the CAN registers page (page 0x0C).
2. Set the INIT and the CCE bits to 1 in CAN0CN. See the CAN User’s Guide for bit definitions.
3. Set timing parameters in the Bit Timing Register and the BRP Extension Register.
4. Initialize each message object or set its MsgVal bit to NOT VALID.
5. Reset the INIT bit to 0.
22.1.1. CAN Controller Timing
The CAN controller’s clock (f
is accurate to within 0.5% of 24 MHz across the entire temperature range and for VDD voltages greater
than or equal to the minimum output of the on-chip voltage regulator, and so an external oscillator is not
required for CAN communication for most systems. Refer to Section “4.10.4 Oscillator Tolerance Range” in
the Bosch CAN User’s Guide for further information regarding this topic.
CAN Controller
(32 Objects)
Message
Message
Handler
RAM
sys
) is derived from the CIP-51 system clock (SYSCLK). The internal oscillator
Figure 22.2. CAN Controller Diagram
RX
CAN Core
Rev. 1.2
TX
CAN0CFG
C8051F50x/F51x
System Clock
8051 MCU Core
CAN Registers
SFR space
mapped to
219
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