Motorola MC68HC908AB32 User Manual

Timer Interface Module B (TIMB)
Technical Data MC68HC908AB32 — Rev. 1.0
200 Timer Interface Module B (TIMB) MOTOROLA
12.5.2 Input Capture
With the input capture function, the TIMB can capture the time at which
an external event occurs. When an active edge occurs on the pin of an
input capture channel, the TIMB latches the contents of the TIMB
counter into the TIMB channel registers, TBCHxH:TBCHxL. The polarity
of the active edge is programmable. Input captures can generate
TIMB CPU interrupt requests.
$004A
Timer B Channel 1
Register Low
(TBCH1L)
Read:
Bit 7 654321Bit 0
Write:
Reset: Indeterminate after reset
$0032
Timer B Channel 2 Status
and Control Register
(TBSC2)
Read: CH2F
CH2IE MS2B MS2A ELS2B ELS2A TOV2 CH2MAX
Write: 0
Reset: 00000000
$0033
Timer B Channel 2
Register High
(TBCH2H)
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset: Indeterminate after reset
$0034
Timer B Channel 2
Register Low
(TBCH2L)
Read:
Bit 7 654321Bit 0
Write:
Reset: Indeterminate after reset
$0035
Timer B Channel 3 Status
and Control Register
(TBSC3)
Read: CH3F
CH3IE
0
MS3A ELS3B ELS3A TOV3 CH3MAX
Write: 0
Reset: 00000000
$0036
Timer B Channel 3
Register High
(TBCH3H)
Read:
Bit 15 14 13 12 11 10 9 Bit 8
Write:
Reset: Indeterminate after reset
$0037
Timer B Channel 3
Register Low
(TBCH3L)
Read:
Bit 7 654321Bit 0
Write:
Reset: Indeterminate after reset
Addr. Register Name Bit 7 654321Bit 0
= Unimplemented
Figure 12-2. TIMB I/O Register Summary (Sheet 2 of 2)

Motorola MC68HC908AB32 Specifications

General

Brand	Motorola
Model	MC68HC908AB32
Category	Controller
Language	English