33889 Datasheet, PDF (46/60 Pages) Freescale Semiconductor, Inc – System Basis Chip with Low Speed Fault Tolerant CAN Interface

FUNCTIONAL DEVICE OPERATION
LOGIC COMMANDS AND REGISTERS
Table 18. IOR register.
IOR
$011b
W
R
Reset
Reset condition
Table 19. Control bits
D3
SHIFT
HS1ON
0
1
Table 20. Gnd shift selection
GSLR1
0
0
1
1
GSLR0
0
1
0
1
D2
HS1ON
HS1OT
0
POR, RESET
D1
GSLR1
V2LOW
0
POR, RESET
D0
GSLR0
VSUPLOW
0
POR, RESET
HS1
HS1 switch turn OFF
HS1 switch turn ON
Typical gnd shift comparator level
-0.3 V
-0.7 V
-1.2 V
-1.7 V
Shift
0
1
State
Gnd shift value is lower than the level selected by the GSLR1 and GSLR2 bit
Gnd shift value is higher than the level selected by the GSLR1 and GSLR2 bit
33889
46
Analog Integrated Circuit Device Data
Freescale Semiconductor