MC68HC908MR8 Datasheet, PDF (201/372 Pages) Motorola, Inc – Microcontrollers

PTB2/TCLKA
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 11-1. TIMA Block Diagram
Timer Interface A (TIMA)
Features
INTERRUPT
LOGIC
PTB3
LOGIC
INTERRUPT
LOGIC
PTB3/TCH0A
PTB4
LOGIC
INTERRUPT
LOGIC
PTB4/TCH1A
Addr.
Register Name
Bit 7
6
5
4
3
Read
:
TOF
0
0
$000
E
TIMA Status/Control Regis-
ter (TASC)
See page 214.
Write
:
0
TOIE TSTOP
TRST
R
Re-
set:
0
0
1
0
0
$000
F
Read
:
TIMA Counter Register High
(TACNTH)
See page 216.
Write
:
Re-
set:
Bit 15
R
0
Bit 14
R
0
Bit 13
R
0
Bit 12
R
0
Bit 11
R
0
R = Reserved
Figure 11-2. TIMA I/O Register Summary
2
PS2
0
Bit 10
R
0
1
PS1
0
Bit 9
R
0
Bit 0
PS0
0
Bit 8
R
0
MC68HC908MR8 — Rev 4.1
Freescale Semiconductor
Timer Interface A (TIMA)
Technical Data
201