參數(shù)資料
型號: 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): 140/152頁
文件大?。?/td> 897K
代理商: MC68HC05L25PB
Time Base
MC68HC05L25 Data Sheet, Rev. 3.1
88
Freescale Semiconductor
9.3 Time Base Control Register 1
TBCLK — Clock Source
This bit selects the time base clock source and is cleared on reset.
1 = OSC selected for time base clock source
0 = XOSC selected for the time base clock source
Bit 6 — Reserved
This bit is not used and always reads as zero.
LCLK — LCD Clock
The LCLK bit selects the clock for the LCD driver and is cleared on reset.
When TBCLK = 0:
1 = XOSC divide by 128 selected for the LCD clock
0 = XOSC divide by 64 selected for the LCD clock
When TBCLK = 1:
1 = OSC divide by 16,384 selected for the LCD clock
0 = OSC divide by 8192 selected for the LCD clock
RMC4 — Remote Control Generator Divider
This bit selects the remote control carrier duty cycle and is cleared on reset.
1 = 33-67% duty selected if RMC3 = 0
0 = 50-50% duty selected
RMC3:RMC0 — Remote Control Generator Divider
These bits select the remote control carrier frequency.
(See Table 9-4.) These bits are cleared on reset.
Address:
$0010
Bit 7
654321
Bit 0
Read:
TBCLK
0
LCLK
RMC4
RMC3
RMC2
RMC1
RMC0
Write:
Reset:
00000000
= Unimplemented
Figure 9-5. Time Base Control Register 1 (TBCR1)
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