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| 型號(hào)： | M34556M8H-XXXFP |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PDSO42 |
| 封裝： | 0.450 INCH, 0.80 MM PITCH, PLASTIC, SSOP-42 |
| 文件頁(yè)數(shù)： | 111/147頁(yè) |
| 文件大?。?/td> | 1087K |
| 代理商： | M34556M8H-XXXFP |
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Rev.3.02
Dec 22, 2006
page 64 of 142
REJ03B0025-0302
4556 Group
Timer count source
Stop timer 1, 2 and LC counting to change its count source.
Reading the count value
Stop timer 1 or 2 counting and then execute the data read in-
struction (TAB1, TAB2) to read its data.
Writing to the timer
Stop timer 1, 2 or LC counting and then execute the data write in-
struction (T1AB, T2AB, TLCA) to write its data.
Writing to reload register R1, R2H
When writing data to reload register R1, reload register R2H
while timer 1 or timer 2 is operating, avoid a timing when timer 1
or timer 2 underflows.
Timer 2
Avoid a timing when timer 2 underflows to stop timer 2 at PWM
output function used.
When “H” interval extension function of the PWM signal is set to
be “valid”, set “1” or more to reload register R2H.
Timer 3
Stop timer 3 counting to change its count source.
Timer input/output pin
Set the port C output latch to “0” to output the PWM signal from
C/CNTR pin.
LIST OF PRECAUTIONS
Noise and latch-up prevention
Connect a capacitor on the following condition to prevent noise
and latch-up;
connect a bypass capacitor (approx. 0.1
F) between pins VDD
and VSS at the shortest distance,
equalize its wiring in width and length, and
use relatively thick wire.
In the One Time PROM version, CNVSS pin is also used as VPP
pin. Accordingly, when using this pin, connect this pin to VSS
through a resistor about 5 k
(connect this resistor to CNVSS/
VPP pin as close as possible).
In addtion, the MCU may be replaced with mask ROM version
without the need to remove the resistor from the circuit and with-
out any adverse effect on operation.
Register initial values 1
The initial value of the following registers are undefined after sys-
tem is released from reset. After system is released from reset,
set initial values.
Register Z (2 bits)
Register D (3 bits)
Register E (8 bits)
Register initial values 2
The initial value of the following registers are undefined at RAM back-
up. After system is returned from RAM back-up, set initial values.
Register Z (2 bits)
Register X (4 bits)
Register Y (4 bits)
Register D (3 bits)
Register E (8 bits)
Stack registers (SKS)
Stack registers (SKs) are eight identical registers, so that subrou-
tines can be nested up to 8 levels. However, one of stack
registers is used respectively when using an interrupt service
routine and when executing a table reference instruction. Accord-
ingly, be careful not to over the stack when performing these
operations together.
Prescaler
Stop counting and then execute the TABPS instruction to read
from prescaler data.
Stop counting and then execute the TPSAB instruction to set
prescaler data.
10
11
12
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PDF描述 |
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| M34559G6FP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP52 |
| M34559G6-XXXFP | 4-BIT, MROM, 6 MHz, MICROCONTROLLER, PQFP52 |
| M34570EDFP | 4-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDSO36 |
| M34570M4-XXXFP | 4-BIT, MROM, 2 MHz, MICROCONTROLLER, PDSO36 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M34556M8-XXXFP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34556MXH-XXXFP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34556MX-XXXFP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34559G6 | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
| M34559G6FP | 制造商:RENESAS 制造商全稱(chēng):Renesas Technology Corp 功能描述:SINGLE-CHIP 4-BIT CMOS MICROCOMPUTER |
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