mc33389 Freescale Semiconductor, Inc, mc33389 Datasheet - Page 28

• Manufacturer Part Number: mc33389
• Description: System Basis Chip With Low Speed Fault Tolerant Can
• Manufacturer: Freescale Semiconductor, Inc

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33389
FUNCTIONAL DEVICE OPERATION
OPERATIONAL MODES
1. V1 Low = V1 below reset threshold
2. V1 High = V1 above reset threshold
3. W/D: Trigger = SCWR register write operation during Normal Request mode
4. W/D: Time-out = SWCR register not written before W/D time-out period expired, or W/D written in incorrect time window.
5. SPI: Sleep = SPI write command to MCR and MCVR registers, data sleep
6. SPI: Normal = SPI write command to MCR and MCVR registers, data normal
7. SPI: Stand-by = SPI write command to MCR and MCVR registers, data stand-by
8. Wake-Up = one of the following events occur: CAN wake-up, Forced wake-up, Cyclic sense wake-up, Direct LX wake-
9. V1Low > 100 ms = V1 below reset threshold for more than 100 ms
In normal request mode time out is 75ms
up, or SPI CS wake-up
a. This condition leads to SBC in Sleep mode only for the 33389ADW (SO28 package)
b. V1 Low for > 100 ms does not lead to Sleep mode for the 33389CDW (SO28WB package) and for the 33389CDH
(HSOP20 package)
Figure 14. State Machine Legend
Analog Integrated Circuit Device Data
Freescale Semiconductor