參數(shù)資料
型號: W78ERD2A40PN
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 8-BIT MICROCONTROLLER
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 13/72頁
文件大?。?/td> 606K
代理商: W78ERD2A40PN
W78ERD2
Publication Release Date: April 20, 2005
- 13 -
Revision A4
Timer Mode Control
Bit:
7
6
5
4
3
2
1
0
GATE
T
C/
M1
M0
GATE
T
C/
M1
M0
Mnemonic: TMOD Address: 89h
BIT
NAME
FUNCTION
7
GATE
Gating control: When this bit is set, Timer/counter x is enabled only while INTx pin
is high and TRx control bit is set. When cleared, Timer x is enabled whenever TRx
control bit is set.
6
T
C/
Timer or Counter Select: When cleared, the timer is incremented by internal clocks.
When set, the timer counts high-to-low edges of the Tx pin.
5
M1
Mode Select bits:
4
M0
Mode Select bits:
3
GATE
Gating control: When this bit is set, Timer/counter x is enabled only while
INTx
pin
is high and TRx control bit is set. When cleared, Timer x is enabled whenever TRx
control bit is set.
2
T
C/
Timer or Counter Select: When cleared, the timer is incremented by internal clocks.
When set, the timer counts high-to-low edges of the Tx pin.
1
M1
Mode Select bits:
0
M0
Mode Select bits:
M1, M0: Mode Select bits:
M1
M0
0
0
0
1
1
0
1
1
Mode
Mode 0: 8-bits with 5-bit prescale.
Mode 1: 18-bits, no prescale.
Mode 2: 8-bits with auto-reload from THx
Mode 3: (Timer 0) TL0 is an 8-bit timer/counter controlled by the standard Timer 0
control bits. TH0 is a 8-bit timer only controlled by Timer 1 control bits. (Timer 1)
Timer/counter is stopped.
Timer 0 LSB
Bit:
7
6
5
4
3
2
1
0
TL0.7
TL0.6
TL0.5
TL0.4
TL0.3
TL0.2
TL0.1
TL0.0
Mnemonic: TL0 Address: 8Ah
TL0.7-0: Timer 0 Low byte
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