参数资料
型号: MC68HC05SR3B
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PDIP42
封装: SDIP-42
文件页数: 43/96页
文件大小: 612K
代理商: MC68HC05SR3B
MOTOROLA
6-2
MC68HC05SR3
TIMER
6
Figure 6-1 Timer Block Diagram
Clock Source
Logic
Interrupt Circuit
Timer Data Register ($08)
TIF
TIM
TCEX TINE PRER PR2
PR1
PR0
Timer Control Register ($09)
Overow
Detect
Circuit
TIMER
Internal Processor Clock
8-bit count-down timer counter
7-bit prescaler counter
Prescaler
Select
Logic
(8 to 1 MUX)
Inter
nal
Bus
8
RST
TCEX
TINE
Clock Source
0
Internal clock to timer
0
1
“AND” of internal clock and TIMER pin to timer
1
0
Input clock to timer disabled
1
TIMER pin to timer
TPG
46
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