MC68HC05X4 Datasheet, PDF (111/156 Pages) Motorola, Inc – HCMOS Microcontroller Unit

Freescale Semiconductor, Inc.
16-Bit Programmable Timer
Port configuration register (PCR)
Internal bus
Internal
processor
clock
High
byte
Low
byte
f_OP
Output
compare
register
$16 _{( ÷ 4 )}
$17
8-bit
buffer
High
byte
Low byte
16-bit
$18
free-running
counter
$19
Alternate
$1A
counter
register
$1B
8
High
byte
Input
capture
register
Low
byte
$14
$15
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 OLVL
Interrupt circuit
$12 TCR
(Timer control register)
RESET
TCMP
(Output level)
TCAP
(Input edge)
Table 1. 16-bit programmable timer block diagram
3-ptimer
16-Bit Programmable Timer
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MC68HC05X4 Rev 1.0