參數(shù)資料
型號: S1C63406F
元件分類: 微控制器/微處理器
英文描述: 4-BIT, MROM, 4.2 MHz, MICROCONTROLLER, PQFP128
封裝: PLASTIC, TQFP15-128
文件頁數(shù): 84/144頁
文件大小: 1160K
代理商: S1C63406F
36
EPSON
S1C63406 TECHNICAL MANUAL
CHAPTER 4: PERIPHERAL CIRCUITS AND OPERATION (Output Ports)
FOFQ0–FOFQ2: FOUT frequency selection register (FF06HD0–D2)
Selects a frequency of the FOUT signal.
Table 4.5.5.2 FOUT clock frequency
FOFQ1
1
0
1
0
FOFQ2
1
0
FOFQ0
1
0
1
0
1
0
1
0
Clock frequency
fOSC3
fOSC3/2
fOSC1
fOSC1/4
fOSC1/8
fOSC1/16
fOSC1/32
fOSC1/64
fOSC1: Clock that is output from the OSC1 oscillation circuit
fOSC3: Clock that is output from the OSC3 oscillation circuit
At initial reset, this register is set to "0".
4.5.6 Programming notes
(1) When using the output port (R12, R13) as the special output port, fix the data register (R12, R13) at
"1". Be aware that the output terminal is fixed at a low (VSS) level the same as the DC output if "0" is
written to the R12 and R13 registers when the special output has been selected.
(2) A hazard may occur when the FOUT signal and the TOUT signal are turned ON and OFF.
(3) When fOSC3 is selected for the FOUT signal frequency, it is necessary to control the OSC3 oscillation
circuit before output.
Refer to Section 4.3, "Oscillation Circuit", for the control and notes.
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