Stereo System User Manual

32 MOTOROLA
Note: Because of its affect on signal polarity, and on how GPIO data is read and written,
31 30 29 28 27 26 25 24
TE TIE INV TC2 TC1 TC0 TS
23 22 21 20 19 18 17 16
DIR DI DO
** ** ** ** **
15 14 13 12 11 10 9 8
** ** ** ** ** ** ** **
7 6543210
** ** ** ** ** ** ** **
READ/WRITE
TIMER CONTROL/STATUS
REGISTER (TCSR0)
ADDRESS X:$FFFFFFE0
** - reserved, read as zero, should be written with zero for future compatibility
31 0
READ/WRITE
TIMER COUNT
REGISTER (TCR0)
ADDRESS X:$FFFFFFE1
31 30 29 28 27 26 25 24
TE TIE INV TC2 TC1 TC0 GPIO TS
23 22 21 20 19 18 17 16
DIR DI DO
** ** ** ** **
15 14 13 12 11 10 9 8
** ** ** ** ** ** ** **
7 6543210
** ** ** ** ** ** ** **
READ/WRITE
TIMER CONTROL/STATUS
REGISTER (TCSR1)
ADDRESS X:$FFFFFFE8
** - reserved, read as zero, should be written with zero for future compatibility
31 0
READ/WRITE
TIMER COUNT
REGISTER (TCR1)
ADDRESS X:$FFFFFFE9
GPIO
Figure 8 - Timer Module Programming Model
(0) (0) (0) (0)
(0)
(0) (0)(0)
(1)(0) (0)
(0)
(0) (0) (0) (0) (0) (0)(0)
(0) (1) (0)
The numbers in parentheses represent the bits’ reset values
The numbers in parentheses represent the bits’ reset values