參數(shù)資料
型號: UPD753017GC
廠商: NEC Corp.
元件分類: 4位微控制器
英文描述: 4-BIT SINGLE-CHIP MICROCONTROLLER FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTER
中文描述: 4位單片機(jī)的小型通用紅外遙控器
文件頁數(shù): 24/80頁
文件大?。?/td> 569K
代理商: UPD753017GC
24
μ
PD753012, 753016, 753017
6.4 Clock Output Circuit
The clock output circuit is provided to output the clock pulses from the P22, PTO2, and PCL pins to the remote
control waveform outputs and peripheral LSI’s, etc.
Clock output (PCL) :
Φ
, 524, 262, 65.5 kHz (at 4.19 MHz operation)
Φ
, 750, 375, 93.8 kHz (at 6.0 MHz operation)
Figure 6-3. Clock Output Circuit Block Diagram
From clock
generator
Φ
f
X
/2
3
f
X
/2
4
f
X
/2
6
Selector
CLOM3
0
CLOM1 CLOM0
4
CLOM
P22
output latch
Port 2 I/O mode
specification bit
PORT2.2
Bit 2 of PMGB
Internal bus
Output buffer
PCL/PTO2/P22
S
From timer/event
counter (channel 2)
Remark
Special care has been taken in designing the chip so that small-width pulses may not be output
when switching clock output enable/disable.
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