33889 Datasheet, PDF (5/60 Pages) Freescale Semiconductor, Inc – System Basis Chip with Low Speed Fault Tolerant CAN Interface

PIN CONNECTIONS
Table 2. Pin Definitions (continued)
A functional description of each pin can be found in the Functional pin description section page 24.
Pin
Pin Name
Pin
Function
Formal Name
Definition
25
MISO
Output
Master In/Slave Out ^{SPI data sent to the MCU by the 33889. When CS}_LOW ^{is HIGH, the pin}
is in the high impedance state.
26
MOSI
Input
Master Out/Slave In ^{SPI data received by the 33889.}
27
CS
Input
Chip Select
The CS_LOW input pin is used with the SPI bus to select the 33889. When
the CS_LOW is asserted LOW, the 33889 is the selected device of the SPI
bus.
28
WDOG
Output
Watchdog
The WDOG output pin is asserted LOW if the software watchdog is not
correctly triggered.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33889
5