PIC18C858-E/L Microchip Technology, PIC18C858-E/L Datasheet - Page 185

• Manufacturer Part Number: PIC18C858-E/L
• Description: IC MCU OTP 16KX16 CAN 84PLCC
• Manufacturer: Microchip Technology
• Series: PIC® 18Cr

Specifications of PIC18C858-E/L

• Core Processor: PIC
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: CAN, I²C, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, LVD, POR, PWM, WDT
• Number Of I /o: 68
• Program Memory Size: 32KB (16K x 16)
• Program Memory Type: OTP
• Ram Size: 1.5K x 8
• Voltage - Supply (vcc/vdd): 4.2 V ~ 5.5 V
• Data Converters: A/D 16x10b
• Oscillator Type: External
• Operating Temperature: -40°C ~ 125°C
• Package / Case: 84-PLCC
• For Use With: AC164310 - MODULE SKT FOR PM3 84PLCCDVA18XL840 - ADAPTER DEVICE ICE 84PLCCAC174012 - MODULE SKT PROMATEII 84PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Other names: PIC18C858E/L

17.2
There are many registers associated with the CAN
module. Descriptions of these registers are grouped
into sections. These sections are:
• Control and Status Registers
• Transmit Buffer Registers
• Receive Buffer Registers
• Baud Rate Control Registers
• Interrupt Status and Control Registers
REGISTER 17-1:
Note:
2000 Microchip Technology Inc.
bit 7-5
bit 4
bit 3-1
bit 0
Control Registers for the CAN Module
Not all CAN registers are available in the
access bank.
CANCON – CAN CONTROL REGISTER
bit 7
REQOP2:REQOP0: Request CAN Operation Mode bits
1xx = Request Configuration mode
011 = Request Listen Only mode
010 = Request Loopback mode
001 = Request Disable mode
000 = Request Normal mode
ABAT: Abort All Pending Transmissions bit
1 = Abort all pending transmissions (in all transmit buffers)
0 = Transmissions proceeding as normal
WIN2:WIN0: Window Address bits
This selects which of the CAN buffers to switch into the access bank area. This allows access
to the buffer registers from any data memory bank. After a frame has caused an interrupt, the
ICODE2:ICODE0 bits can be copied to the WIN2:WIN0 bits to select the correct buffer. See
Example 17-1 for code example.
111 = Receive Buffer 0
110 = Receive Buffer 0
101 = Receive Buffer 1
100 = Transmit Buffer 0
011 = Transmit Buffer 1
010 = Transmit Buffer 2
001 = Receive Buffer 0
000 = Receive Buffer 0
Unimplemented: Read as ’0’
Legend:
R = Readable bit
- n = Value at POR
REQOP2
R/W-1
REQOP1
R/W-0
Advanced Information
W = Writable bit
’1’ = Bit is set
REQOP0
R/W-0
R/W-0
ABAT
17.2.1
This section shows the CAN Control and Status
registers.
CAN CONTROL AND STATUS REGISTERS
U = Unimplemented bit, read as ‘0’
’0’ = Bit is cleared
R/W-0
WIN2
R/W-0
WIN1
PIC18CXX8
x = Bit is unknown
R/W-0
WIN0
DS30475A-page 185
U-0
—
bit 0