XC68HC705JB3 Motorola, XC68HC705JB3 Datasheet - Page 53

• Manufacturer Part Number: XC68HC705JB3
• Description: MICROCONTROLLER
• Manufacturer: Motorola

MC68HC05JB3
REV 1
8
The Multi-Function Timer (or Core Timer) module is a 15-stage ripple counter with
Timer Over Flow (CTOF), Real Time Interrupt (RTI), and COP Watchdog function.
8
÷2
Overflow
10
Detect
Circuit
CTOF RTIF CTOFE RTIE
Figure 8-1. Multi-Function Timer Block Diagram
Interrupt Circuit
to CPU interrupt
÷2
Timer Control & Status Register ($08)
RTI Select Circuit
17
Timer Counter Register ($09)
MULTI-FUNCTION TIMER
÷2
16
MULTI-FUNCTION TIMER
÷2
7-bit counter
15
CTOFR
November 5, 1998
SECTION 8
÷2
MCU Internal Bus
14
RTIFR
RT1
RT0
GENERAL RELEASE SPECIFICATION
f
OP
÷2
2
Resetable Timer
COP Watchdog
÷4
(÷8)
Internal
Timer Clock
(NTF1)
MOTOROLA
8-1