參數(shù)資料
型號: UPD78F9212CS-CAB-A
廠商: Renesas Electronics America
文件頁數(shù): 45/175頁
文件大?。?/td> 0K
描述: MCU 8BIT 4KB FLASH 16PIN
標準包裝: 400
系列: 78K0S/Kx1+
核心處理器: 78K0S
芯體尺寸: 8-位
速度: 10MHz
外圍設備: LVD,POR,PWM,WDT
輸入/輸出數(shù): 13
程序存儲器容量: 4KB(4K x 8)
程序存儲器類型: 閃存
RAM 容量: 128 x 8
電壓 - 電源 (Vcc/Vdd): 2 V ~ 5.5 V
數(shù)據(jù)轉換器: A/D 4x10b
振蕩器型: 內部
工作溫度: -40°C ~ 85°C
封裝/外殼: 16-DIP(0.300",7.62mm)
包裝: 托盤
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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