mc33905s Freescale Semiconductor, Inc, mc33905s Datasheet - Page 79

• Manufacturer Part Number: mc33905s
• Description: System Basis Chip Gen2 With High Speed Can And Lin Interface
• Manufacturer: Freescale Semiconductor, Inc

Table 37. Flag Descriptions
FIX AND EXTENDED DEVICE STATUS
a fix status information. This information is either:
two bytes
command is used (MOSI bits 15-14, bits C1 C0 = 01)
Table 38. status bits description
Analog Integrated Circuit Device Data
Freescale Semiconductor
LIN 1
Over-temp
RxD1 low
RxD1 high
TxD1 dom
LIN1 bus dom
clamp
For every SPi command the device response on MISO is
Fix Status + Extended Status: when a device write
MOSI
Bits
CAN-LOC
CAN-BUS
VREG-G
SAFE-G
VREG-1
VREG-0
CAN-G
I/O-G
Bits
I/O-1
RST
I/I-0
INT
WU
INT
15
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Description
Set / Reset condition
Flag
Indicate that an INT has occurred and that INT flags are pending to be read.
Indicate that an Wake Up has occurred and that Wake Up flags are pending to be read.
Indicate that an Reset has occurred and that the flags that report the Reset source are pending to be read.
The INT, or WU or RST source is CAN interface. CAN local or CAN bus source.
The INT, or WU or RST source is I/O interfaces.
The INT, or WU or RST source is from a SAFE condition
The INT, or WU or RST source is from a Regulator event, or voltage monitoring event
The INT, or WU or RST source is CAN interface. CAN local source.
The INT, or WU or RST source is CAN interface. CAN bus source.
The INT, or WU or RST source is I/O interface, flag from I/O sub adress Low (bit 7 =0)
The INT, or WU or RST source is I/O interface, flag from I/O sub adress High (bit 7 =1)
The INT, or WU or RST source is from a Regulator event, flag from REG register sub adress high (bit 7 =1)
The INT, or WU or RST source is from a Regulator event, flag from REG register sub adress low (bit 7 =0)
WU
14
RST
13
CAN-G
12
Report that the LIN1 or LIN 2 interface has reach over temperature threshold.
Set: LIN1 /LIN2 thermal sensor above threshold. Reset: sensor below threshold and flag read (SPI)
Report that RxD1 / RxD2 pin is shorted to gnd.
Set: Rx low failure detected. Reset: failure recovered and flag read (SPI)
Report that RxD1 / RxD2 pin is shorted to recessive voltage.
Set: Rx high failure detected. Reset: failure recovered and flag read (SPI)
Report that TxD1 / RxD2 pin is shorted to gnd.
Set: Tx low failure detected. Reset: failure recovered and flag read (SPI)
Report that the LIN1 / LIN2 bus is dominant for a time longer than t
Set: Bus dominant clamp failure detected. Reset: failure recovered and flag read (SPI)
LIN-G
11
I/O-G
10
SAFE-G VREG-
9
G
8
Description
one byte
(MOSI bits 15-14, bits C1 C0 = 00 or 11).
Fix Status: when a device read operation is performed
CAN-
BUS
7
Description
CAN-
LOC
6
LIN1
5
LIN0
4
SERIAL PERIPHERAL INTERFACE
DOM
I/O-1
3
I/O-0
2
VREG-1 VREG-
1
FLAGS
33904/5
0
0
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