MC68HC05J3 Datasheet, PDF (42/92 Pages) Motorola, Inc – High-density Complementary Metal Oxide Semiconductor (HCMOS) Microcomputer Unit

Internal bus
High
Low
byte
byte
Output
$16
compare
register
$17
Internal
processor
clock
f_OP
(÷4)
8-bit
buffer
High
byte
Low byte
16-bit
$18
free-running
counter
$19
Alternate $1A
counter
register
$1B
8
High
Low
byte
byte
Input
$14
capture
register
$15
6
Output
compare
circuit
Overflow
detect
circuit
ICF OCF TOF
$13 TSR
(Timer status register)
Edge
detect
circuit
Output level
register
CLK
D _CQ
ICIE OCIE TOIE 0 0 0 IEDG OLV
Interrupt circuit
$12 TCR
(Timer control register)
RESET
TCMP
(Output level)
TCAP
(Input edge)
Figure 6-1 16-bit programmable timer block diagram
MOTOROLA
6-2
16-BIT PROGRAMMABLE TIMER
TPG
MC68HC05J3