參數資料
型號: HD4074618TF
廠商: Hitachi,Ltd.
英文描述: 4-Bit Single-Chip Microcomputer
中文描述: 4位單片機
文件頁數: 47/89頁
文件大?。?/td> 358K
代理商: HD4074618TF
HD404618 Series
47
Table 21 Timer Mode Register A
TMA
Bit 3
Bit 2
Bit 1
Bit 0
Source Prescaler, Input Clock Period,
Operating Mode
0
0
0
0
PSS, 2048 t
cyc
PSS, 1024 t
cyc
PSS, 512 t
cyc
PSS, 128 t
cyc
PSS, 32 t
cyc
PSS, 8 t
cyc
PSS, 4 t
cyc
PSS, 2 t
cyc
PSW, 32 t
subcyc
PSW, 16 t
subcyc
PSW, 8 t
subcyc
PSW, 2 t
subcyc
PSW, 1/2 t
subcyc
Not used
Timer A mode
1
1
0
1
1
0
0
1
1
0
1
1
0
0
0
Time-base mode
1
1
0
1
1
0
0
1
1
0
PSW, TCA reset
1
Notes: 1. t
subcyc
= 244.14
μ
s (when 32.768-kHz crystal oscillator is used)
2. Timer counter overflow output period(s) = input clock period(s)
×
256
3. If PSW or TCA reset is selected while the LCD is operating, LCD operation halts (power switch
goes off).
When LCD is connected for display, the PSW and TCA reset periods must be set in the program
to the minimum.
4. In time base mode, the timer counter overflow output cycle must be greater than half of the
interrupt frame period (T/2 = t
RC
).
If 1/2 t
subcyc
is selected, t
RC
must be 7.8125 ms ((MIS1, MIS0) = (0, 1), see figure 14).
5. The division ratio must not be modified during time-base mode operation, otherwise an overflow
cycle error will occur.
相關PDF資料
PDF描述
HD4046212R AS Microcomputer Incorporating a DTMF Generator Circuit(微計算機帶雙音多頻發(fā)生器電路)
HD404628R AS Microcomputer Incorporating a DTMF Generator Circuit(微計算機帶雙音多頻發(fā)生器電路)
HD4074629 AS Microcomputer Incorporating a DTMF Generator Circuit(微計算機帶雙音多頻發(fā)生器電路)
HD404629R AS Microcomputer Incorporating a DTMF Generator Circuit(微計算機帶雙音多頻發(fā)生器電路)
HD404638R 4-Bit Single-Chip Microcomputer(4位單片微計算機)
相關代理商/技術參數
參數描述
HD4074629 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a DTMF Generator Circuit
HD4074629F 制造商:Renesas Electronics Corporation 功能描述:
HD4074629FS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4074629H 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
HD4074629TF 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller