Datasheet

MC68HC908QY4•MC68HC908QT4•MC68HC908QY2•MC68HC908QT2•MC68HC908QY1•MC68HC908QT1
78 System Integration Module (SIM) MOTOROLA
System Integration Module (SIM)
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Addr. Register Name Bit 7 6 5 4 3 2 1 Bit 0
$FE00
Break Status Register
(BSR)
See page 99.
Read:
RRRRRR
SBSW
R
Write: Note 1
Reset:00000000
1. Writing a logic 0 clears SBSW.
$FE01
SIM Reset Status
Register (SRSR)
See page 96.
Read: POR PIN COP ILOP ILAD MODRST LVI 0
Write:
POR:10000000
$FE02 Reserved RRRRRRRR
$FE03
Break Flag Control
Register (BFCR)
See page 98.
Read:
BCFERRRRRRR
Write:
Reset: 0
$FE04
Interrupt Status
Register 1 (INT1)
See page 91.
Read: 0 IF5 IF4 IF3 0 IF1 0 0
Write:RRRRRRRR
Reset:00000000
$FE05
Interrupt Status
Register 2 (INT2)
See page 91.
Read: IF14 0 0 0 0 0 0 0
Write:RRRRRRRR
Reset:00000000
$FE06
Interrupt Status
Register 3 (INT3)
See page 92.
Read: 0 0 0 0 0 0 0 IF15
Write:RRRRRRRR
Reset:00000000
= Unimplemented R = Reserved
Figure 7-2. SIM I/O Register Summary