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參數(shù)資料
| 型號： | UPD17244MC-xxx-5A4 |
| 廠商： | NEC Corp. |
| 英文描述： | 4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS |
| 中文描述： | 4位單片微控制器的小型通用兩用紅外遙控遞質(zhì) |
| 文件頁數(shù)： | 50/102頁 |
| 文件大?。?/td> | 461K |
| 代理商： | UPD17244MC-XXX-5A4 |
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50
Data Sheet U15002EJ1V0DS
μ
PD17240, 17241, 17242, 17243, 17244, 17245, 17246
5.2
Function of 8-Bit Timer (with Modulo Function)
Notes 1.
When the STOP mode is released, bit 3 must be set.
2.
Bit 2 is a write-only bit.
Caution If the system clock is changed while the timer is counting, an error occurs in the timer as follows
(when system clock f
X
= 4 MHz):
High-speed mode 16/f
X
→
Normal mode 32/f
X
... (Error due to resolution of set timer) +1.5
μ
s
Normal mode 32/f
X
→
High-speed mode 16/f
X
... (Error due to resolution of set timer) –1.5
μ
s
3
2
1
0
TMEN
TMRES
TMCK1
TMCK0
Address
RF: 33H
TMRES
After reset
8H
Note 1
R/W
R/W
Note 2
0
1
8-bit timer reset flag
Data read out is always "0"
Resets 8-bit counter and IRQTM
TMEN
0
1
8-bit timer count enable flag
Stops 8-bit timer count operation
Enables 8-bit timer count operation (falling edge)
TMCK1
TMCK0
0
0
0
1
1
0
1
1
8-bit timer clock source selection
Count clock: f
X
/32
(measurable time range: 8 s to 2.048 ms,
resolution: 8 s (error: +8 s))
Count clock: f
X
/64
(measurable time range: 16 s to 4.096 ms,
resolution: 16 s (error: +16 s))
Count clock: f
X
/256
(measurable time range: 64 s to 16.384 ms,
resolution: 64 s (error: +64 s))
Remote controller carrier generator output
Values in parentheses apply to operation when system clock f
X
= 4 MHz.
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| UPD17245MC-XXX-5A4 | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS |
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| UPD1724X | 制造商:NEC 制造商全稱:NEC 功能描述:4-BIT SINGLE-CHIP MICROCONTROLLERS FOR SMALL GENERAL-PURPOSE INFRARED REMOTE CONTROL TRANSMITTERS |
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