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參數(shù)資料
| 型號(hào)： | HMS81C20XXA |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver |
| 中文描述： | CMOS單芯片8位微控制器與A / D轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 45/107頁(yè) |
| 文件大小： | 1482K |
| 代理商： | HMS81C20XXA |
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HMS81C2012A/2020A
SEP. 2004 Ver 2.00
41
Table 10-1 Basic Interval Timer Interrupt Time
Figure 10-2 BITR: Basic Interval Timer Mode Register
Example 1:
Basic Interval Timer Interrupt request flag is generated
every 4.096ms at 4MHz.
:
LDM
SET1
EI
:
CKCTLR,#03H
BITE
Example 2:
Basic Interval Timer Interrupt request flag is generated
every 1.024ms at 4MHz.
:
LDM
SET1
EI
:
CKCTLR,#01H
BITE
CKCTLR
[2:0]
Source clock
Interrupt (overflow) Period (ms)
@ f
XIN
= 4MHz
000
001
010
011
100
101
110
111
f
XIN
÷
8
f
XIN
÷
16
f
XIN
÷
32
f
XIN
÷
64
f
XIN
÷
128
f
XIN
÷
256
f
XIN
÷
512
f
XIN
÷
1024
0.512
1.024
2.048
4.096
8.192
16.384
32.768
65.536
BTCL
7
-
6
5
4
3
2
1
0
RCWDT
BTS1
Basic Interval Timer source clock select
000: f
XIN
÷
8
001: f
XIN
÷
16
010: f
XIN
÷
32
011: f
XIN
÷
64
100: f
XIN
÷
128
101: f
XIN
÷
256
110: f
XIN
÷
512
111: f
XIN
÷
1024
Clear bit
0: Normal operation (free-run)
1: Clear 8-bit counter (BITR) to “0”. This bit becomes 0 automatically
after one machine cycle, and starts counting.
INITIAL VALUE: -001 0111
B
ADDRESS: 0EC
CKCTLR
INITIAL VALUE: Undefined
ADDRESS: 0EC
BITR
Both register are in same address,
when write, to be a CKCTLR,
when read, to be a BITR.
Caution:
8-BIT FREE-RUN BINARY COUNTER
WDTON
BTS0
BTS2
BTCL
7
6
5
4
3
2
1
0
0: Operate as a 7-bit general timer
1: Enable Watchdog Timer operation
See the section “Watchdog Timer”.
WAKEUP
0: Disable Wake-up Timer
1: Enable Wake-up Timer
0: Disable Internal RC Watchdog Timer
1: Enable Internal RC Watchdog Timer
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| HMS81C20XXA-HK | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:CMOS Single-Chip 8-Bit Microcontroller with A/D Converter & VFD Driver |
| HMS81C2112A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:[VFD MCU: High Voltage IO/ADC/HS PWM/SCI] |
| HMS81C2120A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:[VFD MCU: High Voltage IO/ADC/HS PWM/SCI] |
| HMS81C4260 | 制造商:HYNIX 制造商全稱:Hynix Semiconductor 功能描述:HYNIX SEMICONDUCTOR INC. 8-BIT SINGLE-CHIP MICROCONTROLLERS |
| HMS81C4308 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:[TV : OSD/ I?C] |
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