參數(shù)資料
型號(hào): MC68HC05L25PB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP52
封裝: TQFP-52
文件頁數(shù): 143/152頁
文件大?。?/td> 897K
代理商: MC68HC05L25PB
Time Base
MC68HC05L25 Data Sheet, Rev. 3.1
90
Freescale Semiconductor
9.5 Time Base Control Register 3
Bit 7 — Reserved
This bit is not used and always reads as zero.
RMON — Remote Control Generator Signal ON
When the port is used as remote control output (RMPE = 1), this bit turns on or off the remote control
signal. The idle state is output when cleared and is cleared on reset.
1 = Carrier on
0 = Carrier off; idle state defined by RPOL as output
RPOL — Remote Control Idle Polarity
This bit controls the idle state of the remote control generator output on the port and is cleared on reset.
1 = Remote idle state outputs logic 1.
0 = Remote idle state outputs logic 0.
RMPE — Remote Control Generator Port Output Enable
This bit enables the remote control generator output on the port. The actual remote signal on/off is
controlled by RMON bit. This bit is cleared on reset.
1 = Port pin functions as remote control output.
0 = Port pin functions as general I/O port.
BCLK — Buzzer Clock Select
This bit selects the buzzer tone output frequency. This bit is cleared on reset.
1 = OSC/211 or XOSC/24 selected for buzzer clock
0 = OSC/210 or XOSC/23 selected for buzzer clock
BZON — Buzzer Signal ON
When the port is used as buzzer output (BZPE = 1), BZON turns on the buzzer signal. Reset clears
BZON.
1 = Buzzer on
0 = Buzzer off; idle state defined by BPOL as output
BPOL — Buzzer Output Polarity
This bit selects the buzzer output pin’s polarity during buzzer idle (standby) period (BZON = 0). When
BZE = 0, this bit has no effect. This bit is cleared on reset.
1 = Buzzer idle state outputs logic 1.
0 = Buzzer idle state outputs logic 0.
BZPE — Buzzer Output Port Enable
This bit controls whether the port functions as buzzer output or a general I/O port. The actual buzzer
signal on/off is controlled by the BZON bit. (See Table 7-1.) This bit is cleared on reset.
1 = Port pin functions as buzzer output.
0 = Port pin functions as general I/O port.
Address:
$001F
Bit 7
654321
Bit 0
Read:
0
RMON
RPOL
RMPE
BCLK
BZON
BPOL
BZPE
Write:
Reset:
00000000
= Unimplemented
Figure 9-7. Time Base Control Register 3 (TBCR3)
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