參數(shù)資料
型號(hào): HD407A4669
廠商: Hitachi,Ltd.
英文描述: Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit(帶雙音多頻電路的低電壓微計(jì)算機(jī))
中文描述: 低電壓如同在微機(jī)芯片的DTMF產(chǎn)生電路(帶雙音多頻電路的低電壓微計(jì)算機(jī))
文件頁數(shù): 73/142頁
文件大小: 894K
代理商: HD407A4669
HD404669 Series
73
Timer mode register D2 (TMD2: $015):
Timer mode register D2 (TMD2: $015) is a 4-bit read/write
register, used to switch the function of the R3
2
/TOD pin and select the timer D output mode as shown in
figure 51. Timer mode register D2 (TMD2: $015) is reset to $0 by an MCU reset and in stop mode.
Bit
Initial value
Read/Write
Bit name
3
0
R/W
TMD23
2
0
R/W
TMD22
0
0
R/W
TMD20
1
0
R/W
TMD21
Timer mode register D2 (TMD2: $015)
TMD22
TMD20
0
1
0
1
0
1
0
1
TMD21
0
1
0
1
0
1
R3
2
/TOD mode selection
R3
2
TOD
TOD
TOD
TOD
R3
2
R3
2
port
Toggle output
0 output
1 output
Not used
PWM output
Input capture (R3
2
port)
T
0
1
×
×
×
×
: Don’t care
Figure 51 Timer Mode Register D2 (TMD2)
Timer write register D (TWDL: $011, TWDU: $012):
Write-only register consisting of the lower digit
(TWDL: $011) and the upper digit (TWDU: $012). The operation of timer write register D is basically the
same as that of timer write register C (TWCL: $00E, TWCU: $00F).
Bit
Initial value
Read/Write
Bit name
3
0
W
TWDL3
2
0
W
TWDL2
0
0
W
TWDL0
1
0
W
TWDL1
Timer write register D (lower digit) (TWDL: $011)
Figure 52 Timer Write Register D Lower Digit (TWDL)
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