參數(shù)資料
型號(hào)： HD404614FS
廠商： Hitachi,Ltd.
英文描述： 4-Bit Single-Chip Microcomputer
中文描述： 4位單片機(jī)
文件頁(yè)數(shù)： 45/89頁(yè)
文件大?。?/td> 358K
代理商： HD404614FS
HD404618 Series
45
System
clock
INT
1
Selector
Prescaler S (PSS)
Clock
Timer counter register BU (TCBU)
Timer counter
register BL
(TCBL)
Timer counter B
(TCB)
Timer load
register BU
(TLRU)
Timer load
register BL
(TLRL)
Timer mode
register B
(TMB)
Timer B interrupt
request flag
(IFTB)
f
cyc
/f
SUB
(t
cyc
/t
subcyc
)
3
I
2
÷
4
÷
8
÷
3
÷
1
÷
5
÷
2
÷
Free-running
control
Overflow
Figure 27 Timer B Block Diagram
Timer C (TCCL and TCRL: $00E, TCCU and TCRU: $00F):
Eight-bit write-only timer load register
(TCRL and TCRU) and read-only timer counter (TCCL and TCCU) located at the same addresses. The
eight-bit configuration consists of lower and upper 4-bit digits located at sequential addresses. The
operation of timer C is basically the same as that of timer B.
The auto-reload function and prescaler division ratio of timer C depend on the state of timer mode register
C (TMC). Timer C is initialized to the value set in TMC by software, and is then incremented by one at
each clock input. If an input is applied to timer C after it has reached $FF, an overflow is generated. In
this case, if the auto-reload function is enabled, timer C is initialized to its initial value; if auto-reload is
disabled, the timer is initialized to $00. The overflow sets the timer C interrupt request flag (IFTC: $002,
bit 2).
Timer C also functions as a watchdog timer. If a program routine runs out of control and an overflow is
generated while the watchdog on (WDON) flag is set, the MCU is reset. This error can be detected by
having the program control timer C reset before timer C reaches $FF.
The WDON can only have 1 written to it ; it is cleared to 0 only by MCU reset.
Timer Mode Register A (TMA: $008):
Four-bit write-only register that controls timer A as shown in
table 21.
相關(guān)PDF資料
PDF描述
HD404614H 4-Bit Single-Chip Microcomputer
HD404614TF 4-Bit Single-Chip Microcomputer
HD404616 4-Bit Single-Chip Microcomputer
HD404616FS 4-Bit Single-Chip Microcomputer
HD404616H 4-Bit Single-Chip Microcomputer
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD404614H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404614TF 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404616 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-Bit Single-Chip Microcomputer
HD404616FS 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-Bit Single-Chip Microcomputer
HD404616H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*