參數(shù)資料
型號: UPD78F9201MA-CAC-A
廠商: Renesas Electronics America
文件頁數(shù): 54/158頁
文件大?。?/td> 0K
描述: MCU 8BIT 2KB FLASH 128B RAM
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): 7
程序存儲器容量: 2KB(2K 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: 10-LSSOP(0.225",5.72mm 寬)
包裝: 托盤
CHAPTER 7 8-BIT TIMER H1
User’s Manual U18172EJ3V0UD
145
Figure 7-10. Operation Timing in PWM Output Mode (4/4)
(e) Operation by changing CMP11 (CMP11 = 02H
→ 03H, CMP01 = A5H)
00H 01H 02H
A5H 00H 01H 02H 03H
A5H 00H
02H
A5H
03H
80H
CMP01
TMHE1
INTTMH1
TOH1
(TOLEV1 = 0)
CMP11
Count clock
8-bit timer counter H1
<2>'
<2>
<1>
<3>
<4>
<5>
<6>
02H (03H)
<1>
The count operation is enabled by setting TMHE1 = 1. Start 8-bit timer counter H1 by masking one count
clock to count up. At this time, the TOH1 output remains inactive (when TOLEV1 = 0).
<2>
The CMP11 register value can be changed during timer counter operation. This operation is asynchronous
to the count clock.
<3>
When the values of 8-bit timer counter H1 and the CMP01 register match, the value of 8-bit timer counter H1
is cleared, the TOH1 output becomes active, and the INTTMH1 signal is output.
<4>
If the CMP11 register value is changed, the value is latched and not transferred to the register. When the
values of 8-bit timer counter H1 and the CMP11 register before the change match, the value is transferred to
the CMP11 register and the CMP11 register value is changed (<2>’).
However, three count clocks or more are required from when the CMP11 register value is changed to when
the value is transferred to the register. If a match signal is generated within three count clocks, the changed
value cannot be transferred to the register.
<5>
When the values of 8-bit timer counter H1 and the CMP11 register after the change match, the TOH1 output
becomes inactive. 8-bit timer counter H1 is not cleared and the INTTMH1 signal is not generated.
<6>
Clearing the TMHE1 bit to 0 during timer H1 operation makes the INTTMH1 signal and TOH1 output inactive.
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