88
MC96F8204
ABOV Semiconductor Co., Ltd.
11.2 Basic Interval Timer
11.2.1 Overview
The MC96F8204 has one 8-bit basic interval timer that is free-
run and can’t stop. Block diagram is shown in Figure
11.2. In addition, the basic interval timer generates the time base for watchdog timer counting. It also provides a basic
interval timer interrupt (BITIFR).
The MC96F8204 has these basic interval timer (BIT) features:
−
During Power On, BIT gives a stable clock generation time
−
On exiting Stop mode, BIT gives a stable clock generation time
−
As timer function, timer interrupt occurrence
11.2.2 Block Diagram
BIT Clock
BCK[2:0]
8-Bit Up Counter
BITCNT
BCLR
clear
BITIFR
To interrupt
block
selected bit
overflow
WDT
INT_ACK
clear
Start CPU
RESET
STOP
Figure 11.2
Basic Interval Timer Block Diagram
11.2.3 Register Map
Name
Address
Direction
Default
Description
BITCNT
8CH
R
00H
Basic Interval Timer Counter Register
BITCR
8BH
R/W
01H
Basic Interval Timer Control Register
Table 11.2
Basic Interval Timer Register Map
Содержание MC96F8104M
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