参数资料
型号: DTMFDECODER-RD
厂商: Silicon Laboratories Inc
文件页数: 156/178页
文件大小: 0K
描述: KIT REF DESIGN DTMF DECODER
应用说明: DTMF Decoder Ref Design AppNote
标准包装: 1
主要目的: 电信,DTMF 解码器
嵌入式:
已用 IC / 零件: C8051F300
主要属性: 8kHz 采样速率模数转换器
次要属性: 16 个 Goertzel 滤波器
已供物品: 板,软件
产品目录页面: 627 (CN2011-ZH PDF)
相关产品: 336-1535-5-ND - IC 8051 MCU 8K FLASH 14-SOIC
C8051F300-GMR-ND - IC 8051 MCU 8K FLASH 11QFN
336-1245-ND - IC 8051 MCU 8K FLASH 11QFN
其它名称: 336-1283
Rev. 2.9
79
C8051F300/1/2/3/4/5
SFR Definition 8.11.
Bit7:
IN1PL: /INT1 Polarity
0: /INT1 input is active low.
1: /INT1 input is active high.
Bits6–4: IN1SL2–0: /INT1 Port Pin Selection Bits
These bits select which Port pin is assigned to /INT1. Note that this pin assignment is inde-
pendent of the Crossbar; /INT1 will monitor the assigned Port pin without disturbing the
peripheral that has been assigned the Port pin via the Crossbar. The Crossbar will not
assign the Port pin to a peripheral if it is configured to skip the selected pin (accomplished by
setting to ‘1’ the corresponding bit in register XBR0).
Bit3:
IN0PL: /INT0 Polarity
0: /INT0 interrupt is active low.
1: /INT0 interrupt is active high.
Bits2–0: INT0SL2–0: /INT0 Port Pin Selection Bits
These bits select which Port pin is assigned to /INT0. Note that this pin assignment is inde-
pendent of the Crossbar. /INT0 will monitor the assigned Port pin without disturbing the
peripheral that has been assigned the Port pin via the Crossbar. The Crossbar will not
assign the Port pin to a peripheral if it is configured to skip the selected pin (accomplished by
setting to ‘1’ the corresponding bit in register XBR0).
R/W
Reset Value
IN1PL
IN1SL2
IN1SL1
IN1SL0
IN0PL
IN0SL2
IN0SL1
IN0SL0
00000001
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
SFR Address:
0xE4
Note: Refer to SFR Definition 15.1 for INT0/1 edge- or level-sensitive interrupt selection.
IN1SL2–0
/INT1 Port Pin
000
P0.0
001
P0.1
010
P0.2
011
P0.3
100
P0.4
101
P0.5
110
P0.6
111
P0.7
IN0SL2–0
/INT0 Port Pin
000
P0.0
001
P0.1
010
P0.2
011
P0.3
100
P0.4
101
P0.5
110
P0.6
111
P0.7
IT01CF: INT0/INT1 Configuration
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