mc68hc908jb8 Freescale Semiconductor, Inc, mc68hc908jb8 Datasheet - Page 96

• Manufacturer Part Number: mc68hc908jb8
• Description: M68hc08 Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

System Integration Module (SIM)
8.3 SIM Bus Clock Control and Generation
Technical Data
96
Addr.
$FE00
$FE01
$FE02
$FE03
$FE04 Interrupt Status Register 1
Note: Writing a logic 0 clears SBSW.
Break Status Register
Reset Status Register
Register Name
Break Flag Control
Reserved Read:
Register
(BFCR)
(INT1)
(RSR)
(BSR)
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:
Read:
Write:
Read:
Write:
Write:
Read:
Write:
Read:
Write:
POR:
Figure 8-2. SIM I/O Register Summary
BCFE
Bit 7
POR
IF6
R
R
R
1
0
0
System Integration Module (SIM)
FROM CLOCK
FROM CLOCK
DOUBLER
DOUBLER
PIN
IF5
R
R
R
R
6
0
0
Figure 8-3. SIM Clock Signals
MC68HC908JB8•MC68HC08JB8•MC68HC08JT8 — Rev. 2.3
OSCXCLK
OSCOUT
COP
IF4
R
R
R
R
5
0
0
ILOP
IF3
R
R
R
R
4
0
0
÷ 2
SIM COUNTER
SIM
Figure
ILAD
IF2
R
R
R
R
3
0
0
GENERATORS
BUS CLOCK
8-3.
USB
IF1
Freescale Semiconductor
R
R
R
R
2
0
0
See note
SBSW
LVI
R
R
R
1
0
0
0
0
Bit 0
R
R
R
R
0
0
0
0