參數(shù)資料
型號： HD4046212R
廠商： Hitachi,Ltd.
英文描述： AS Microcomputer Incorporating a DTMF Generator Circuit(微計(jì)算機(jī)帶雙音多頻發(fā)生器電路)
中文描述： 由于微機(jī)安裝有雙音多頻發(fā)電機(jī)斷路器（微計(jì)算機(jī)帶雙音多頻發(fā)生器電路）
文件頁數(shù)： 61/155頁
文件大?。?/td> 549K
代理商： HD4046212R
HD404629R Series
61
Bit
Initial value
Read/Write
Bit name
3
0
W
TMA3
2
0
W
TMA2
0
0
W
TMA0
1
0
W
TMA1
Timer mode register A (TMA: $008)
0
0
1
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
X
PSS
PSS
PSS
PSS
PSS
PSS
PSS
PSS
PSW
PSW
PSW
PSW
—
Operating mode
Timer A mode
TMA3
TMA1
TMA2
TMA0
Source
prescaler
2048t
cyc
1024t
cyc
512t
cyc
128t
cyc
32t
cyc
8t
cyc
4t
cyc
2t
cyc
Input clock
frequency
0
1
1
32t
Wcyc
16t
Wcyc
8t
Wcyc
2t
Wcyc
1/2t
Wcyc
Time-base
mode
0
0
1
1
0
1
1
—
—
X : Don’t care
Note: 1.
2.
3.
4.
t
Wcyc
= 244.14
μ
s (when a 32.768-kHz crystal oscillator is used)
Timer counter overflow output period (seconds) = input clock period (seconds)
×
256.
If PSW of TCA reset is selected while the LCD is operating, LCD operation halts (power switch
goes off and all SEG and COM pins are grounded).
When an LCD is connected for display, the PSW and TCA reset periods must be set in the
program to the minimum.
The division ratio must not be modified during time-base mode operation, otherwise an overflow
cycle error will occur.
Not used
Reset PSW and TCA
Figure 44 Timer Mode Register A (TMA)
Timer B
Timer B Functions:
Timer B has the following functions.
Free-running/reload timer
External event counter
Timer output operation (toggle, 0, and 1 outputs)
相關(guān)PDF資料
PDF描述
HD404628R AS Microcomputer Incorporating a DTMF Generator Circuit(微計(jì)算機(jī)帶雙音多頻發(fā)生器電路)
HD4074629 AS Microcomputer Incorporating a DTMF Generator Circuit(微計(jì)算機(jī)帶雙音多頻發(fā)生器電路)
HD404629R AS Microcomputer Incorporating a DTMF Generator Circuit(微計(jì)算機(jī)帶雙音多頻發(fā)生器電路)
HD404638R 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
HD40A4638R 4-Bit Single-Chip Microcomputer(4位單片微計(jì)算機(jī))
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD4046212RFS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4046212RH 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a DTMF Generator Circuit
HD4046212RTF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4046212TF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD404628FS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
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