mc68hc908jb16 Freescale Semiconductor, Inc, mc68hc908jb16 Datasheet - Page 100

• Manufacturer Part Number: mc68hc908jb16
• Description: M68hc08 Microcontrollers Microcontroller
• Manufacturer: Freescale Semiconductor, Inc

System Integration Module (SIM)
8.3 SIM Bus Clock Control and Generation
Technical Data
100
Note: Writing a logic 0 clears SBSW.
Addr.
$FE00
$FE01
$FE03
$FE04
$FE05
SIM Break Status Register
SIM Reset Status Register
Interrupt Status Register 1
Interrupt Status Register 2
SIM Break Flag Control
Register Name
(SBFCR)
Register
(SRSR)
(SBSR)
(INT1)
(INT2)
The bus clock generator provides system clock signals for the CPU and
peripherals on the MCU. The system clocks are generated from an
incoming clock, OSCOUT, as shown in
Reset:
Reset:
Reset:
Reset:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
Read:
Write:
POR:
Figure 8-2. SIM I/O Register Summary
BCFE
Bit 7
POR
IF14
IF6
R
R
R
1
0
0
0
System Integration Module (SIM)
FROM OSC
IF13
PIN
IF5
R
R
R
R
6
0
0
0
Figure 8-3. SIM Clock Signals
COP
IF12
IF4
R
R
R
R
5
0
0
0
OSCDCLK
OSCOUT
ILOP
IF11
IF3
R
R
R
R
4
0
0
0
÷ 2
SIM COUNTER
Figure
ILAD
IF10
IF2
SIM
R
R
R
R
3
0
0
0
GENERATORS
MC68HC908JB16
8-3.
BUS CLOCK
USB
IF1
IF9
Freescale Semiconductor
R
R
R
R
2
0
0
0
See note
SBSW
LVI
IF8
R
R
R
1
0
0
0
0
0
—
Rev. 1.1
Bit 0
IF7
R
R
R
R
0
0
0
0
0