参数资料
型号: MC68HC05F4CP
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 1.789 MHz, MICROCONTROLLER, PDIP28
封装: PLASTIC, DIP-28
文件页数: 100/130页
文件大小: 2089K
代理商: MC68HC05F4CP
MC68HC05F4
MOTOROLA
7-5
DTMF/MELODY GENERATOR
7
The state of the TNO pin depends on the value of the TNOE bit. After a RESET, the TNOE is
cleared and the TNO pin is tristate. When TNOE is set, the TNO output is activated. If the TGER
and TGEC bits are held low and TNOE is set, the dc offset of VDD/2 appears at TNO pin. In STOP
mode, the TNX pin is high and the TNO pin is tristate.
When both MS1 and MS0 are set (square wave 3), the generator can generate both single tone
melody at the column path, and ToneX at the row path simultaneously.
TGER — Tone generator enable row path
1 (set)
Row path on
0 (clear) –
Row path off
TGEC — Tone generator enable column path
1 (set)
Column path on
0 (clear) –
Column path off
TNOE — Tone output enable
1 (set)
TNO on
0 (clear) –
TNO off
.
Table 7-1 Bit description for DTMF generation
FCR
register
FCC
register
Tone
Standard
frequency
(Hz)
Tone output
frequency (Hz)
Frequency
deviation
$00
fR1
697.0
694.8
0.32
$01
fR2
770.0
770.1
0.02
$02
fR3
852.0
854.2
0.03
$03
fR4
941.0
940.0
0.11
$10
fC1
1209.0
1206.0
0.244
$11
fC2
1336.0
1331.7
0.324
$12
fC3
1477.0
1486.5
0.645
$13
fC4
1633.0
1639.0
0.367
Note: The legal values in the FCR register column are illegal to the FCC register,
and vice versa. An input of illegal values to these registers will produce a
high at TNX output and VDD/2 at TNO output (TNOE = 1)
TPG
67
05F4Book Page 5 Tuesday, August 5, 1997 1:10 pm
相关PDF资料
PDF描述
MK2731-04S 36.864 MHz, VIDEO CLOCK GENERATOR, PDSO16
MC68HC11F1CFN4R2 8-BIT, EEPROM, 4 MHz, MICROCONTROLLER, PQCC68
MC68HC11KS1CFN3 8-BIT, MROM, 3 MHz, MICROCONTROLLER, PQCC68
MB90F548GPF 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP100
MPD78C11AGQA-XXX-36 8-BIT, MROM, 15 MHz, MICROCONTROLLER, PZIP64
相关代理商/技术参数
参数描述
MC68HC05F5 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:HCMOS Microcontroller Unit
MC68HC05F6 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:MCU with DTMF/melody generator
MC68HC05F6P 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller
MC68HC05F8 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor(HCMOS) microcontroller unit
MC68HC05J1 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:HCMOS MICROCONTROLLER UNIT