參數(shù)資料
型號(hào): HD40A46612
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): 42/142頁
文件大?。?/td> 894K
代理商: HD40A46612
HD404669 Series
42
Bit
Initial value
Read/Write
Bit name
3
0
W
SSR13
2
0
W
SSR12
0
0
W
SSR10
1
0
W
SSR11
System clock select register 1 (SSR1: $029)
SSR12
0
1
ratio selection
f
SUB
= f
X
/8
f
SUB
= f
X
/4
SSR13
0
1
32-kHz oscillation stop
Oscillation operates in stop mode
Oscillation stops in stop mode
32-kHz oscillation division
SSR23
0
1
System clock
selection
400 kHz
800 kHz
2 MHz
4 MHz
3.58 MHz
8 MHz
7.16 MHz
SSR22
0
1
0
1
SSR11
0
1
×
1
×
SSR10
0
1
0
1
×
1
×
Note: SSR13 is cleared only by a RESET input. SSR13 will not be cleared by a
STOPC
input during
stop mode, and will retain its value.
SSR13 will also not be cleared upon entering stop mode.
Figure 24 System Clock Select Register 1 (SSR1)
SSR21
0
SSR20
0
1
0
1
1
System clock division
ratio selection
*
1
Division by 4
Division by 8
Division by 16
Division by 32
System clock select register 2 (SSR2: $02A)
Bit
Initial value
Read/Write
Bit name
SSR23
0
1
0
1
0
1
SSR23
SSR22
System clock selection
*
2
Selected from 400 kHz,
800 kHz, 2 MHz, 4 MHz
3.58MHz
8MHz
7.16MHz
Notes :
*
1
*
2
The DTMF generation circuit frequencies are not affected by the system clock division ratio
setting.
See system clock select register 1 (SSR1).
3
0
W
2
0
W
SSR22
0
0
W
SSR20
1
0
W
SSR21
Figure 25 System Clock Select Register 2 (SSR2)
相關(guān)PDF資料
PDF描述
HD40A4668 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))
HD40A4669 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))
HD404668 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))
HD404669 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))
HD407A4669 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))
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
HD40A46612H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
HD40A4668 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
HD40A4668H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
HD40A4669 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit
HD40A4669H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:Low-Voltage AS Microcomputers with On-Chip DTMF Generation Circuit