Microcontrollers Data Sheet

Memory
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
34 Freescale Semiconductor
$0053
TIMB Counter Register Low
(TBCNTL)
See page 246.
Read: Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Write: R R R R R R R R
Reset: 0 0 0 0 0 0 0 0
$0054
TIMB Counter Modulo Register
High (TBMODH)
See page 246.
Read:
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
Write:
Reset: 1 1 1 1 1 1 1 1
$0055
TIMB Counter Modulo Register
Low (TBMODL)
See page 246.
Read:
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Write:
Reset: 1 1 1 1 1 1 1 1
$0056
TIMB Channel 0 Status/Control
Register (TBSC0)
See page 247.
Read: CH0F
CH0IE MS0B MS0A ELS0B ELS0A TOV0 CH0MAX
Write: 0
Reset: 0 0 0 0 0 0 0 0
$0057
TIMB Channel 0 Register High
(TBCH0H)
See page 250.
Read:
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
Write:
Reset: Indeterminate after reset
$0058
TIMB Channel 0 Register Low
(TBCH0L)
See page 250.
Read:
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Write:
Reset: Indeterminate after reset
$0059
TIMB Channel 1 Status/Control
Register (TBSC1)
See page 247.
Read: CH1F
CH1IE
0
MS1A ELS1B ELS1A TOV1 CH1MAX
Write: 0 R
Reset: 0 0 0 0 0 0 0 0
$005A
TIMB Channel 1 Register High
(TBCH1H)
See page 250.
Read:
Bit 15 Bit 14 Bit 13 Bit 12 Bit 11 Bit 10 Bit 9 Bit 8
Write:
Reset: Indeterminate after reset
$005B
TIMB Channel 1 Register Low
(TBCH1L)
See page 250.
Read:
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Write:
Reset: Indeterminate after reset
$005C
PLL Control Register
(PCTL)
See page 66.
Read:
PLLIE
PLLF
PLLON BCS
1111
Write: R R R R R
Reset: 0 0 1 0 1 1 1 1
$005D
PLL Bandwidth Control
Register (PBWC)
See page 67.
Read:
AUTO
LOCK
ACQ
XLD
0000
Write: R R R R R
Reset: 0 0 0 0 0 0 0 0
$005E
PLL Programming Register
(PPG)
See page 68.
Read:
MUL7 MUL6 MUL5 MUL4 VRS7 VRS6 VRS5 VRS4
Write:
Reset: 0 1 1 0 0 1 1 0
$005F Unimplemented
Addr. Register Name Bit 7 6 5 4 3 2 1 Bit 0
U = Unaffected X = Indeterminate R = Reserved Bold = Buffered = Unimplemented
Figure 2-2. Control, Status, and Data Registers Summary (Sheet 7 of 8)