MC68HC908MR8 Datasheet, PDF (227/372 Pages) Motorola, Inc – Microcontrollers

Timer Interface B (TIMB)
Functional Description
Addr.
$0058
$0059
$005
A
$005
B
Register Name
Bit 7
6
5
4
3
2
1 Bit 0
Read
:
TIMB Channel 0 Register
Low Write
(TBCH0L) :
See page 246.
Re-
set:
Bit 7
Bit 6
Bit 5 Bit 4 Bit 3 Bit 2
Indeterminate after reset
Bit 1
Bit 0
Read
:
TIMB Channel 1 Sta-
tus/Control Register Write
(TBSC1) :
CH1F
0
CH1IE
0
R
MS1A
ELS1B ELS1A
TOV1
CH1MA
X
See page 246.
Re-
set:
0
0
0
0
0
0
0
0
Read
:
TIMB Channel 1 Register
High Write
(TBCH1H) :
See page 246.
Re-
set:
Bit 15
Bit 14
Bit 13 Bit 12 Bit 11 Bit 10
Indeterminate after reset
Bit 9
Bit 8
Read
:
TIMB Channel 1 Register
Low Write
(TBCH1L) :
See page 246.
Re-
set:
Bit 7
Bit 6
Bit 5 Bit 4 Bit 3 Bit 2
Indeterminate after reset
Bit 1
Bit 0
R = Reserved
Figure 12-2. TIMB I/O Register Summary (Continued)
12.4 Functional Description
Figure 12-1 shows the TIMB structure. The central component of the
TIMB is the 16-bit TIMB counter that can operate as a free-running
counter or a modulo up-counter. The TIMB counter provides the timing
reference for the input capture and output compare functions. The TIMB
counter modulo registers, TBMODH–TBMODL, control the modulo
value of the TIMB counter. Software can read the TIMB counter value at
any time without affecting the counting sequence.
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
Timer Interface B (TIMB)
Technical Data
227