INTERNAL BLOCK DIAGRAM
INTERNAL BLOCK DIAGRAM
Dual Voltage Regulator
VBAT
V2
V1
5V
Voltage Control
Battery Voltage Failure Detect
Voltage Monitor
5V
V
Switch Supply
BAT
Mode Control
V3
INT
Interrupt Control
Reset Control
Watchdog & Oscillator
RST
L0
L1
L2
Programmable
Wake-Up Inputs
V
2
TX
RX
CS
SCLK
MOSI
MISO
Fault-Tolerant
CAN
Transceiver
SPI
Interface
RTH
CANH
CANL
GND
RTL
Figure 2. 33389 Simplified Internal Block Diagram
33389
Analog Integrated Circuit Device Data
Freescale Semiconductor
3