參數(shù)資料
型號(hào): HD404848
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): 62/125頁(yè)
文件大?。?/td> 471K
代理商: HD404848
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HD404849 Series
62
Bit
Initial value
Read/Write
Bit name
3
0
W
TMB13
2
0
W
TMB12
0
0
W
TMB10
1
0
W
TMB11
Timer mode register B1 (TMB1: $009)
0
1
0
1
0
1
0
1
0
1
0
1
0
1
2048t
cyc
512t
cyc
128t
cyc
32t
cyc
8t
cyc
4t
cyc
2t
cyc
R1
3
/
EVNB
(external event input)
TMB12
TMB10
TMB11
Input clock period and input
clock source
TMB13
0
1
Free-running/reload
timer selection
Free-running timer
Reload timer
Figure 44 Timer Mode Register B1 (TMB1)
Writing to this register is valid from the second instruction execution cycle after the execution of the
previous timer mode register B1 write instruction. A timer B initialization by writing to timer write
register B (TWBL: $00A, TWBU: $00B) must be programmed to occur after a mode change becomes
valid.
Timer mode register B2 (TMB2: $013): Two-bit read/write register that selects the timer B output
mode as shown in figure 45. It is reset to $0 by MCU reset.
Bit
Initial value
Read/Write
Bit name
3
Not used
2
Not used
0
0
R/W
TMB20
1
0
R/W
TMB21
Timer mode register B2 (TMB2: $013)
TMB21
0
1
TMB20
0
1
0
1
R1
0
/TOB mode selection
R1
0
TOB
TOB
TOB
R1
0
port
Toggle output
0 output
1 output
Figure 45 Timer Mode Register B2 (TMB2)
Timer write register B (TWBL: $00A, TWBU: $00B): Write-only register consisting of a lower digit
(TWBL) and upper digit (TWBU). The lower digit is reset to $0 by MCU reset, but the upper digit
value cannot be guaranteed. See figures 46 and 47.
相關(guān)PDF資料
PDF描述
HD404848FS 4-Bit Single-Chip Microcomputer
HD404848H RELAY SOCKET
HD404848TF PLASTIC-GRIP
HD404849 TERMINAL
HD404849FS TERMINAL
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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
HD404849 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD404849FS 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer