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CHAPTER 12 16-BIT RELOAD TIMER
12.4.3
16-bit Timer Register (TMR0/TMR1)
The 16-bit timer register (TMR0/TMR1) is always able to read the count value from the
16-bit down counter.
■
16-bit Timer Register (TMR0/TMR1)
Figure 12.4-4 shows the 16-bit timer registers (TMR0/TMR1).
Figure 12.4-4 16-bit Timer Register (TMR0/TMR1)
The 16-bit timer register is able to read the counter value from the 16-bit down counter.
When counting is enabled (TMCSRL0/TMCSRL1:CNTE = 1) to start counting, the value written to the 16-
bit reload register is loaded into this register, and counting down starts. This register value is stored in the
counter stop status (TMCSRL0/TMCSRL1:CNTE = 0).
Notes:
• This register is able to read the count value even during counting. It should always be read with a
word transfer instruction (MOVW A, 003AH, etc.).
• Although the 16-bit timer register (TMR0/TMR1) is a read-only register, it is allocated to the same
address as the address of the write-only 16-bit reload register (TMRD0/TMRD1). Accordingly,
writing to this register has no effect on the TMR0/TMR1 value, although writing to TMRD0/TMRD1
is done.
15
14
13
12
11
10
9
8
R
X
R
X
R
X
R
X
R
X
R
X
R
X
R
X
D15
D12
D11
D10
D09
D08
7
6
5
4
3
2
1
0
16-bit Timer Register (Upper)
16-bit Timer Register (Lower)
TMR0/TMR1
TMR0/TMR1
Initial value
Read/write
R
X
R
X
R
X
R
X
R
X
R
X
R
X
R
X
Initial value
Read/write
D07
D06
D05
D04
D03
D02
D01
D00
D13
D14
Address: ch.0 000085
H
ch.1 000089
H
Address: ch.0 000084
H
ch.1 000088
H
bit
bit
Содержание MB90460 Series
Страница 1: ...The following document contains information on Cypress products ...
Страница 3: ......
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Страница 9: ...iv ...
Страница 41: ...22 CHAPTER 1 OVERVIEW ...
Страница 45: ...26 CHAPTER 2 NOTES ON HANDLING DEVICES ...
Страница 83: ...64 CHAPTER 3 CPU ...
Страница 95: ...76 CHAPTER 4 RESET ...
Страница 107: ...88 CHAPTER 5 CLOCK ...
Страница 131: ...112 CHAPTER 6 LOW POWER CONSUMPTION MODE ...
Страница 175: ...156 CHAPTER 7 INTERRUPT ...
Страница 181: ...162 CHAPTER 8 MODE SETTING ...
Страница 223: ...204 CHAPTER 9 I O PORT ...
Страница 237: ...218 CHAPTER 10 TIME BASE TIMER ...
Страница 247: ...228 CHAPTER 11 WATCHDOG TIMER ...
Страница 275: ...256 CHAPTER 12 16 BIT RELOAD TIMER ...
Страница 373: ...354 CHAPTER 14 MULTI FUNCTIONAL TIMER ...
Страница 485: ...466 CHAPTER 16 PWC Timer ...
Страница 531: ...512 CHAPTER 17 UART ...
Страница 559: ...540 CHAPTER 19 DELAYED INTERRUPT GENERATOR MODULE ...
Страница 589: ...570 CHAPTER 20 8 10 BIT A D CONVERTER ...
Страница 601: ...582 CHAPTER 21 ROM CORRECTION FUNCTION ...
Страница 633: ...614 CHAPTER 23 512K 1024K BIT FLASH MEMORY ...
Страница 645: ...626 CHAPTER 24 EXAMPLE OF F2 MC 16LX MB90F462 F462A F463A CONNECTION FOR SERIAL WRITING ...
Страница 715: ...696 APPENDIX ...
Страница 716: ...697 INDEX INDEX The index follows on the next page This is listed in alphabetic order ...
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