MC68HC908GR16 Datasheet, PDF (180/276 Pages) Motorola, Inc – Microcontrollers

System Integration Module (SIM)
Addr.
Register Name
Bit 7
6
5
4
3
2
1
Bit 0
$FE00
Break Status Register ^Read:
R
(BSR) Write:
R
R
R
R
SBSW
R
Note⁽¹⁾
R
See page 192. _Reset:
0
0
0
0
0
0
0
0
1. Writing a a 0 clears SBSW.
SIM Reset Status Register ^{Read: POR}
PIN
COP
ILOP
ILAD MODRST LVI
0
$FE01
(SRSR) Write:
See page 193. _POR:
1
0
0
0
0
0
0
0
Break Flag Control Register ^Read: _BCFE
R
R
R
R
R
R
R
$FE03
(BFCR) Write:
See page 194. _Reset:
0
Interrupt Status Register 1 ^{Read: IF6}
IF5
IF4
IF3
IF2
IF1
0
0
$FE04
(INT1) Write: R
R
R
R
R
R
R
R
See page 188. _Reset:
0
0
0
0
0
0
0
0
Interrupt Status Register 2 ^{Read: IF14}
IF13
IF12
IF11
IF10
IF9
IF8
IF7
$FE05
(INT2) Write: R
R
R
R
R
R
R
R
See page 189. _Reset:
0
0
0
0
0
0
0
0
Interrupt Status Register 3 ^Read:
0
$FE06
(INT3) Write: R
See page 189. _Reset:
0
0
IF20
IF19
IF18
IF17
IF16
IF15
R
R
R
R
R
R
R
0
0
0
0
0
0
0
= Unimplemented
R = Reserved
Figure 15-3. SIM I/O Register Summary
OSC2
OSC1
OSCILLATOR (OSC)
CGMXCLK
OSCENINSTOP
FROM
CONFIG
CGMRCLK
PHASE-LOCKED LOOP (PLL)
TO TBM,TIM1,TIM2, ADC
SIM
SIM COUNTER
÷2
BUS CLOCK
GENERATORS
SIMOSCEN
IT12
TO REST
OF CHIP
IT23
TO REST
OF CHIP
Figure 15-4. System Clock Signals
MC68HC908GR16 Data Sheet, Rev. 5.0
180
Freescale Semiconductor