MCBSTM32EXL Keil, MCBSTM32EXL Datasheet - Page 564

• Manufacturer Part Number: MCBSTM32EXL
• Description: BOARD EVALUATION FOR STM32F103ZE
• Manufacturer: Keil

Specifications of MCBSTM32EXL

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Controller area network (bxCAN)
564/995
31
15
30
14
Reserved.
Bits 31:12
Bits 7:5
CAN master status register (CAN_MSR)
Address offset: 0x04
Reset value: 0x0000 0C02
Bit 11 RX
Bit 10 SAMP
Bit 0 INRQ
Bit 9 RXM
Bit 8 TXM
Bit 4 SLAKI
Bit 3 WKUI
29
13
Note: When SLKIE=0, no polling on SLAKI is possible. In this case the SLAK bit can be
The software clears this bit to switch the hardware into normal mode. Once 11 consecutive
recessive bits have been monitored on the Rx signal the CAN hardware is synchronized and
ready for transmission and reception. Hardware signals this event by clearing the INAK bit in
the CAN_MSR register.
Software sets this bit to request the CAN hardware to enter initialization mode. Once
software has set the INRQ bit, the CAN hardware waits until the current CAN activity
(transmission or reception) is completed before entering the initialization mode. Hardware
signals this event by setting the INAK bit in the CAN_MSR register.
Reserved, forced by hardware to 0.
Monitors the actual value of the CAN_RX Pin.
The value of RX on the last sample point (current received bit value).
The CAN hardware is currently receiver.
The CAN hardware is currently transmitter.
Reserved, forced by hardware to 0.
When SLKIE=1, this bit is set by hardware to signal that the bxCAN has entered Sleep
Mode. When set, this bit generates a status change interrupt if the SLKIE bit in the
CAN_IER register is set.
This bit is cleared by software or by hardware, when SLAK is cleared.
This bit is set by hardware to signal that a SOF bit has been detected while the CAN
hardware was in Sleep mode. Setting this bit generates a status change interrupt if the
WKUIE bit in the CAN_IER register is set.
This bit is cleared by software.
28
12
:
CAN Rx signal
:
:
:
:
Transmit mode
Receive mode
:
Initialization request
:
polled.
Wakeup interrupt
Last sample point
Sleep acknowledge interrupt
RX
27
11
r
SAMP
26
10
r
RXM
25
9
r
Doc ID 13902 Rev 9
TXM
24
8
r
Reserved
23
7
Reserved
22
6
21
5
SLAKI
rc_w1
20
4
WKUI
rc_w1
19
3
rc_w1
ERRI
18
2
SLAK
17
1
r
RM0008
INAK
16
0
r