参数资料
型号: UPD78F9212CS-CAB-A
厂商: Renesas Electronics America
文件页数: 45/175页
文件大小: 0K
描述: MCU 8BIT 4KB FLASH 16PIN
标准包装: 400
系列: 78K0S/Kx1+
核心处理器: 78K0S
芯体尺寸: 8-位
速度: 10MHz
外围设备: LVD,POR,PWM,WDT
输入/输出数: 13
程序存储器容量: 4KB(4K x 8)
程序存储器类型: 闪存
RAM 容量: 128 x 8
电压 - 电源 (Vcc/Vdd): 2 V ~ 5.5 V
数据转换器: A/D 4x10b
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 16-DIP(0.300",7.62mm)
包装: 托盘
CHAPTER 7 8-BIT TIMER H1
User’s Manual U16994EJ6V0UD
137
(1) Usage
Generates the INTTMH1 signal repeatedly at the same interval.
<1>
Set each register.
Figure 7-7. Register Setting During Interval Timer/Square-Wave Output Operation
(i)
Setting timer H mode register 1 (TMHMD1)
0
0/1
0
0/1
TMMD10 TOLEV1
TOEN1
CKS11
CKS12
TMHE1
TMHMD1
CKS10
TMMD11
Timer output setting
Timer output level inversion setting
Interval timer mode setting
Count clock (fCNT) selection
Count operation stopped
(ii) CMP01 register setting
Compare value (N)
<2>
Count operation starts when TMHE1 = 1.
<3>
When the values of 8-bit timer counter H1 and the CMP01 register match, the INTTMH1 signal is generated
and 8-bit timer counter H1 is cleared to 00H.
Interval time = (N +1)/fCNT
<4>
Subsequently, the INTTMH1 signal is generated at the same interval. To stop the count operation, clear
TMHE1 to 0.
(2) Timing chart
The timing of the interval timer/square-wave output operation is shown below.
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