參數(shù)資料
型號: S1C621A0F0A0100
元件分類: 微控制器/微處理器
英文描述: MICROCONTROLLER, PQFP80
封裝: QFP-80
文件頁數(shù): 97/161頁
文件大?。?/td> 1037K
代理商: S1C621A0F0A0100
I-16
EPSON
S1C621A0 TECHNICAL HARDWARE
CHAPTER 3: PERIPHERAL CIRCUITS (Oscillation Circuit)
Oscillation circuit
control by software
As shown in Table 3.3.1, the oscillation circuit can be con-
trolled by software using D1 and D0 at I/O memory address
0F6H.
Table 3.3.1 I/O Memory Map
Note: Init = value at initial reset, x = undefined, – = not set on the circuit
The following two bits relate to the oscillation circuit control
by software.
OSCC: OSC3 oscillation circuit drive control
This bit controls OSC3 oscillation ON/OFF condition.
OSC3 oscillation is ON when OSCC = 1 and OFF when
OSCC = 0.
At initial reset, the OSC3 circuit is turned ON. The
circuit must be turned ON when it is necessary to obtain
a remote control carrier signal output or a faster CPU
speed. In all other cases, the circuit must stay OFF to
save power.
CLKCHG: CPU clock frequency change
This bit selects either a CPU operation clock, OSC3 clock
or OSC1 clock. The OSC3 clock is selected with CLKCHG
= 0 and the OSC1 clock with CLKCHG = 1. At initial
reset, the bit is 0 (OSC3 selected).
Table 3.3.2 lists the relation between the CPU clock
frequency and instruction execution time.
Address
Comment
Register
D3
D2
D1
D0
Name
Init
1
0
0F6H
SVDDT
SVDON
CLKCHG
OSCC
R/W
SVDDT
SVDON
CLKCHG
OSCC
0
1
Normal
On
OSC1
On
Off
OSC3
Off
SVD data (1 when SVDON = 0)
SVD circuit on/off
CPU CLK change OSC1/OSC3
OSC3 oscillation on/off
R
Low
voltage
相關(guān)PDF資料
PDF描述
S1C63158D0A010P 4-BIT, FLASH, 4 MHz, MICROCONTROLLER, UUC53
S1C7XXXF00E199 16-BIT, 90 MHz, RISC MICROCONTROLLER, PQFP
S2041 PHOTO TRANSISTOR DETECTOR
S3P44R10 TRIGGER OUTPUT SOLID STATE RELAY, 4000 V ISOLATION-MAX
S3S12P128J0VQK 16-BIT, MROM, 1.05 MHz, MICROCONTROLLER, PQFP80
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S1C63004 制造商:EPSON 制造商全稱:EPSON 功能描述:CMOS 4-bit Single Chip Microcontroller
S1C63008 制造商:EPSON 制造商全稱:EPSON 功能描述:CMOS 4-bit Single Chip Microcontroller
S1C63016 制造商:EPSON 制造商全稱:EPSON 功能描述:CMOS 4-bit Single Chip Microcontroller
S1C63158 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer
S1C63408 制造商:EPSON 制造商全稱:EPSON 功能描述:4-bit Single Chip Microcomputer