TLE 8264E Infineon Technologies, TLE 8264E Datasheet - Page 32
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TLE 8264E
Manufacturer Part Number
TLE 8264E
Description
Manufacturer
Infineon Technologies
Datasheet
1.TLE_8264E.pdf
(99 pages)
Specifications of TLE 8264E
Packages
PG-DSO-36
Transceiver
High Speed CAN ISO 11898 - 5 / 3 x LIN2.1 / J2602
Voltage Regulator Output
2 x 200 mA + 400 mA
Watchdog
Standard and Window Watchdog
Quiescent Current (max.)
28 ?A (typ) Sleep Mode (5V on)
Standby Current
58 ?A (typ) Stop Mode (5V on)
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8.2.1
To transfer the CAN transceiver into the CAN Normal Mode, an SPI word must be sent. This mode is designed for
normal data transmission/reception within the HS CAN network. It can be accessed in Normal Mode of the SBC,
as well as in SBC Software Flash Mode, and SBC Software Development Mode.
Transmission
The signal from the microcontroller is applied to the TxDCAN input of the SBC. The bus driver switches the
CANH/L output stages to transfer this input signal to the CAN bus lines.
Reduced Electromagnetic Emission
To reduce electromagnetic emissions (EME), the bus driver controls CANH/L slopes symmetrically.
Reception
Analog CAN bus signals are converted into digital signals at RxD via the differential input receiver. In CAN Normal
and CAN Receive Only Mode, the split pin is used to stabilize the Recessive Common Mode signal. The RxD pin
is diagnosed and the detected failure is reported to the SPI diagnostic register.
8.2.2
This mode, which can be used in SBC Stop, Sleep, Restart and Normal Modes by programming via SPI and is
automatically accessed in SBC Fail-Safe Mode, is used to monitor bus activities. A wake up signal on the bus
results in different behavior of the SBC, as described in
to CAN Normal Mode for communication. To enable the CAN wakeable mode after a wake via CAN, the CAN
transceiver must be switched to CAN Normal Mode, CAN Receive Only Mode or CAN Off, before switching to CAN
Wakeable Mode again.
Table 6
SBC Mode
Sleep Mode
Stop Mode
Restart Mode
Fail-Safe Mode
Normal Mode
1) When not masked via SPI
Wake-Up in SBC Sleep Mode
Wake-up is possible via a CAN message (filtering time t >
Restart Mode and from there to Normal Mode the RxD pins in set to LOW, see
able to detect the low signal on RxD and to read the wake source out of the “Wake Register Interrupt” register
(000) via SPI. No Interrupt is generated when coming out of Sleep Mode.
Data Sheet
CAN Normal Mode
CAN Wake Capable Mode
Action Due to a CAN Wake Up
SBC Mode after wake
Restart Mode
Stop Mode
Restart Mode
Restart Mode
Normal Mode
Vcc1µC
Ramping up
ON
Ramping up / ON
Ramping up
ON
32
Table
t
WU
), it automatically transfers the SBC into the SBC
6. After wake-up the transceiver can be switched
INT
HIGH
LOW
HIGH
HIGH
LOW
1)
1)
Figure
High Speed CAN Transceiver
RxD
LOW
LOW
LOW
LOW
LOW
13. The microcontroller is
Rev. 1.0, 2009-03-31
TLE8264E
Int. Bit
WK CAN
1
1
1
1
1
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