MC908MR16CFUE Datasheet, PDF (237/282 Pages) Freescale Semiconductor, Inc – On-chip programming firmware for use with host personal computer, Clock generator module (CGM)

PTE0/TCLKB
INTERNAL
BUS CLOCK
TCLK
PRESCALER
PRESCALER SELECT
TSTOP
TRST
16-BIT COUNTER
16-BIT COMPARATOR
TMODH:TMODL
CHANNEL 0
16-BIT COMPARATOR
TCH0H:TCH0L
16-BIT LATCH
CHANNEL 1
16-BIT COMPARATOR
TCH1H:TCH1L
16-BIT LATCH
PS2
PS1
PS0
ELS0B ELS0A
CH0F
MS0A
ELS1B ELS1A
MS0B
MS1A
CH1F
TOF
TOIE
TOV0
CH0MAX
CH0IE
TOV1
CH1MAX
CH1IE
Figure 17-2. TIMB Block Diagram
Functional Description
INTER-
RUPT
LOGIC
PTE1
LOGIC
INTER-
RUPT
LOGIC
PTE1/TCH0B
PTE2
LOGIC
INTER-
RUPT
LOGIC
PTE2/TCH1B
Addr.
$0051
$0052
$0053
$0054
$0055
Register Name
TIMB Status/Control Register
(TBSC)
See page 244.
TIMB Counter Register High
(TBCNTH)
See page 246.
TIMB Counter Register Low
(TBCNTL)
See page 246.
TIMB Counter Modulo Register
High (TBMODH)
See page 246.
TIMB Counter Modulo Register
Low (TBMODL)
See page 246.
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Read:
Write:
Reset:
Bit 7
TOF
0
0
Bit 15
R
0
Bit 7
R
0
Bit 15
1
Bit 7
1
R
6
5
TOIE TSTOP
0
Bit 14
R
0
Bit 6
R
0
1
Bit 13
R
0
Bit 5
R
0
Bit 14 Bit 13
1
1
Bit 6
Bit 5
1
1
= Reserved
4
0
TRST
0
Bit 12
R
0
Bit 4
R
0
Bit 12
1
Bit 4
1
3
0
R
0
Bit 11
R
0
Bit 3
R
0
Bit 11
1
Bit 3
1
Figure 17-3. TIMB I/O Register Summary
2
1
Bit 0
PS2
PS1
PS0
0
0
0
Bit 10
Bit 9
Bit 8
R
R
R
0
0
0
Bit 2
Bit 1
Bit 0
R
R
R
0
0
0
Bit 10
Bit 9
Bit 8
1
1
1
Bit 2
Bit 1
Bit 0
1
1
1
MC68HC908MR32 • MC68HC908MR16 Data Sheet, Rev. 6.1
Freescale Semiconductor
237