參數(shù)資料
型號: UPD78F9212CS-CAB-A
廠商: Renesas Electronics America
文件頁數(shù): 4/175頁
文件大?。?/td> 0K
描述: MCU 8BIT 4KB FLASH 16PIN
標(biāo)準(zhǔn)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(shè)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(zhuǎn)換器: A/D 4x10b
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 16-DIP(0.300",7.62mm)
包裝: 托盤
CHAPTER 6 16-BIT TIMER/EVENT COUNTER 00
User’s Manual U16994EJ6V0UD
99
Caution
6. When TOE00 is 0, set TOE00, LVS00, and LVR00 at the same time with the 8-bit memory
manipulation instruction.
When TOE00 is 1, LVS00 and LVR00 can be set with the 1-bit
memory manipulation instruction.
(4) Prescaler mode register 00 (PRM00)
This register is used to set the 16-bit timer counter 00 (TM00) count clock and the TI000, TI010 pin input valid
edges.
PRM00 is set by a 1-bit or 8-bit memory manipulation instruction.
Reset signal generation sets the value of PRM00 to 00H.
Figure 6-8. Format of Prescaler Mode Register 00 (PRM00)
Address: FF61H After reset: 00H R/W
Symbol
7
6
5
4
3
2
1
0
PRM00
ES110
ES100
ES010
ES000
0
PRM001
PRM000
ES110
ES100
TI010 pin valid edge selection
0
Falling edge
0
1
Rising edge
1
0
Setting prohibited
1
Both falling and rising edges
ES010
ES000
TI000 pin valid edge selection
0
Falling edge
0
1
Rising edge
1
0
Setting prohibited
1
Both falling and rising edges
PRM001
PRM000
Count clock selection
0
fXP (10 MHz)
0
1
fXP/2
2 (2.5 MHz)
1
0
fXP/2
8 (39.06 kHz)
1
TI000 pin valid edge
Note
Remarks 1. fXP: Oscillation frequency of clock supplied to peripheral hardware
2. ( ): fXP = 10 MHz
Note The external clock requires a pulse longer than two cycles of the internal count clock (fXP).
Cautions 1. Always set data to PRM00 after stopping the timer operation.
2. If the valid edge of the TI000 pin is to be set as the count clock, do not set the clear/start
mode and the capture trigger at the valid edge of the TI000 pin.
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