參數(shù)資料
型號(hào)： S1C88816D
元件分類： 微控制器/微處理器
英文描述： 8-BIT, MROM, 8.2 MHz, MICROCONTROLLER, UUC164
封裝： DIE-164
文件頁數(shù)： 103/173頁
文件大?。?/td> 1411K
代理商： S1C88816D
S1C88816 TECHNICAL MANUAL
EPSON
27
5 PERIPHERAL CIRCUITS AND THEIR OPERATION (Oscillation Circuits and Operating Mode)
5.3 Oscillation Circuits and
Operating Mode
5.3.1 Configuration of oscillation circuits
The S1C88816 is twin clock system with two
internal oscillation circuits (OSC1 and OSC3).
The OSC1 oscillation circuit generates the 32.768
kHz (Typ.) main clock and the OSC3 oscillation
circuit generates the sub-clock when the CPU and
some peripheral circuits (output port, serial
interface and programmable timer) are in high
speed operation. Figure 5.3.1.1 shows the
configuration of the oscillation circuit.
5.3.3 OSC1 oscillation circuit
The OSC1 oscillation circuit generates the 32.768 kHz
(Typ.) system clock which is utilized during low
speed operation (low power mode) of the CPU and
peripheral circuits. Furthermore, even when OSC3 is
utilized as the system clock, OSC1 continues to
generate the source clock for the clock timer and
stopwatch timer.
This oscillation circuit stops when the SLP instruc-
tion is executed. However, in case the SVD circuit is
runninging at this time, oscillation is stopped in
synchronization with the completion of sampling.
In terms of the oscillation circuit types, either
crystal oscillation, CR oscillation, crystal oscillation
(gate capacitor built-in) or external clock input can
be selected with the mask option.
Figure 5.3.3.1 shows the configuration of the OSC1
oscillation circuit.
Fig. 5.3.1.1 Configuration of oscillation circuits
At initial reset, the OSC1 oscillation circuit is
selected for the CPU operating clock and the OSC3
oscillation circuit is in a stopped state. ON/OFF
switching of the OSC3 oscillation circuit and
switching of the system clock between OSC1 and
OSC3 are controlled in software. The OSC3 circuit
is utilized when high speed operation of the CPU
and some peripheral circuits become necessary.
Otherwise, OSC1 should be used to generate the
operating clock and the OSC3 circuit placed in a
stopped state in order to reduce current
consumption.
5.3.2 Mask option
OSC1 oscillation circuit
s
s Crystal oscillation circuit
s
s External clock input
s
s CR oscillation circuit
s
s Crystal oscillation circuit (gate capacitor built-in)
OSC3 oscillation circuit
s
s Crystal oscillation circuit
s
s Ceramic oscillation circuit
s
s CR oscillation circuit
s
s External clock input
In terms of the oscillation circuit types for OSC1,
either crystal oscillation, CR oscillation, crystal
oscillation (gate capacitor built-in) or external clock
input can be selected with the mask option.
In terms of oscillation circuit types for OSC3, either
crystal oscillation, ceramic oscillation, CR oscilla-
tion or external clock input can be selected with the
mask option, in the same way as OSC1.
(3) CR oscillation circuit
To CPU (CLK)
OSC1
oscillation circuit
Clock
switch
OSC3
oscillation circuit
To peripheral
circuit (fOSC1)
OSCC
Oscillation circuit
control signal
CLKCHG
CPU clock
selection signal
To some peripheral
circuit (fOSC3)
SLEEP
status
OSC2
OSC1
RCR1
fOSC1
SLEEP status
VSS
OSC2
OSC1
SLEEP status
fOSC1
X'tal1
VSS
fOSC1
VSS
OSC2
OSC1
X'tal1
CG1
SLEEP status
fOSC1
VSS
SLEEP status
OSC2
OSC1
External
clock
N.C.
VSS
VDD
(1) Crystal oscillation circuit
(2) External clock input
(4) Crystal oscillation circuit (gate capacitor built-in)
Fig. 5.3.3.1 OSC1 oscillation circuit
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
S1C88848 制造商:EPSON 制造商全稱:EPSON 功能描述:8-bit Single Chip Microcomputer
S1C8F360D411000 功能描述:16位微控制器 - MCU 8-bit Flash 60KB LCD Dr. 51 x 32 RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
S1C8F360D511000 功能描述:16位微控制器 - MCU 8-bit Flash 60KB LCD Dr. 51 x 32 RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
S1C8F360F413100 功能描述:16位微控制器 - MCU 8-bit Flash 60KB LCD Dr. 51 x 32 RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
S1C8F360F513200 功能描述:16位微控制器 - MCU 8-bit Flash 60KB LCD Dr. 51 x 32 RoHS:否 制造商:Texas Instruments 核心:RISC 處理器系列:MSP430FR572x 數(shù)據(jù)總線寬度:16 bit 最大時(shí)鐘頻率:24 MHz 程序存儲(chǔ)器大小:8 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:VQFN-40 安裝風(fēng)格:SMD/SMT
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