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參數(shù)資料
| 型號(hào)： | HD4048412H |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | RELAY BASE |
| 中文描述： | 4位單片機(jī) |
| 文件頁(yè)數(shù)： | 63/125頁(yè) |
| 文件大?。?/td> | 471K |
| 代理商： | HD4048412H |
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HD404849 Series
63
Timer B is initialized by writing to timer write register B (TWBL: $00A, TWBU: $00B). In this case,
the lower digit (TWBL) must be written to first, but writing only to the lower digit does not change the
timer B value. Timer B is initialized to the value in timer write register B at the same time the upper
digit (TWBU) is written to. When timer write register B is written to again and if the lower digit value
needs no change, writing only to the upper digit initializes timer B.
Bit
Initial value
Read/Write
Bit name
3
0
W
TWBL3
2
0
W
TWBL2
0
0
W
TWBL0
1
0
W
TWBL1
Timer write register B (lower digit) (TWBL: $00A)
Figure 46 Timer Write Register B Lower Digit (TWBL)
Bit
Initial value
Read/Write
Bit name
3
Undefined
W
TWBU3
2
Undefined
W
TWBU2
0
Undefined
W
TWBU0
1
Undefined
W
TWBU1
Timer write register B (upper digit) (TWBU: $00B)
Figure 47 Timer Write Register B Upper Digit (TWBU)
Timer read register B (TRBL: $00A, TRBU: $00B): Read-only register consisting of a lower digit
(TRBL) and upper digit (TRBU) that holds the count of the timer B upper digit. See figures 48 and 49.
The upper digit (TRBU) must be read first. At this time, the count of the timer B upper digit is
obtained, and the count of the timer B lower digit is latched to the lower digit (TRBL). After this, by
reading TRBL, the count of timer B when TRBU was read can be obtained.
Bit
Initial value
Read/Write
Bit name
3
Undefined
R
TRBL3
2
Undefined
R
TRBL2
0
Undefined
R
TRBL0
1
Undefined
R
TRBL1
Timer read register B (lower digit) (TRBL: $00A)
Figure 48 Timer Read Register B Lower Digit (TRBL)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD4048412TF | 4-Bit Single-Chip Microcomputer |
| HD404848 | 4-Bit Single-Chip Microcomputer |
| HD404848FS | 4-Bit Single-Chip Microcomputer |
| HD404848H | RELAY SOCKET |
| HD404848TF | PLASTIC-GRIP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD4048412TF | 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:4-Bit Single-Chip Microcomputer |
| HD404848 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer |
| HD404848FS | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer |
| HD404848H | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer |
| HD404848TF | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer |
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