參數(shù)資料
型號: HD4074618FS
廠商: Hitachi,Ltd.
英文描述: CONNECTOR
中文描述: 連接器
文件頁數(shù): 63/89頁
文件大小: 358K
代理商: HD4074618FS
HD404618 Series
63
400 kHz (selected at TGSP reset)
800 kHz
TGSP
flag
TONER
VT
ref
TONEC
Sine wave
counter D/A
Transformed
programmable
divider
Transformed
programmable
divider
Sine wave
counter D/A
DTMF
register
Feedback
Feedback
Figure 40 DTMF Circuit Block Diagram
Tone Generator Mode Register (TGM: $010):
Four-bit write-only register which controls output
frequencies (see table 30). It is cleared to $0 by MCU reset.
Table 30 Tone Generator Mode Register
TGM
Bit 3
Bit 2
Bit 1
Bit 0
Output Frequencies
Option
(TONER output
is not affected)
0
0
f
R1
(697 Hz)
Output through
TONER pin
0
1
f
R2
(770 Hz)
f
R3
(852 Hz)
f
R4
(941 Hz)
f
C1
(1,209 Hz)
1
0
1
1
0
0
Option
(TONEC output is not affected)
Output through
TONEC pin
0
1
f
C2
(1,336 Hz)
f
C3
(1,477 Hz)
f
C4
(1,633 Hz)
1
0
1
1
Tone Generator Control Register (TGC: $011):
Three-bit write-only register which controls the start
and stop of DTMF signal output (see table 31). It is cleared to $0 by MCU reset.
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相關代理商/技術參數(shù)
參數(shù)描述
HD4074618H 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD4074618TF 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:4-Bit Single-Chip Microcomputer
HD4074629 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:AS Microcomputer Incorporating a DTMF Generator Circuit
HD4074629F 制造商:Renesas Electronics Corporation 功能描述:
HD4074629FS 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller