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參數(shù)資料
| 型號(hào)： | P83C524EBB |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類(lèi)： | 微控制器/微處理器 |
| 英文描述： | 8-bit microcontrollers |
| 中文描述： | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP44 |
| 封裝： | 10 X 10 X 1.75 MM, PLASTIC, QFP-44 |
| 文件頁(yè)數(shù)： | 24/76頁(yè) |
| 文件大?。?/td> | 400K |
| 代理商： | P83C524EBB |
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1997 Dec 15
24
Philips Semiconductors
Product specification
8-bit microcontrollers
P83C524; P80C528; P83C528
11.1.1
T
IMER
/C
OUNTER
M
ODE
C
ONTROL REGISTER
(TMOD)
Table 4
Timer/Counter Mode Control register (address 89H)
Table 5
Description of the TMOD bits
Table 6
TMOD M1 and M0 operating modes
7
6
5
4
3
2
1
0
TIMER 1
TIMER 0
GATE
C/T
M1
M0
GATE
C/T
M1
M0
BIT
SYMBOL
FUNCTION
TIMER 1
7
GATE
Timer 1 gating control
: when set, Timer/counter '1' is enabled only while 'INT1' pin is
HIGH and 'TR1' control bit is set. When cleared, Timer/counter '1' is enabled whenever
'TR1' control bit is set.
Timer or counter selector
: cleared for timer operation (input from internal system
clock). Set for counter operation (input from 'T1' input pin).
operating mode
: see Table 6.
operating mode
: see Table 6.
6
C/T
5
4
M1
M0
TIMER 0
3
GATE
Timer 0 gating control
: when set, Timer/counter '0' is enabled only while 'INT0' pin is
HIGH and 'TR0' control bit is set. When cleared, Timer/counter '0' is enabled whenever
'TR0' control bit is set.
Timer or counter selector
: cleared for timer operation (input from internal system
clock). Set for counter operation (input from 'T0' input pin).
operating mode
: see Table 6.
operating mode
: see Table 6.
2
C/T
1
0
M1
M0
M1
M0
FUNCTION
0
0
1
0
1
0
8-bit timer/counter
: 'THx' with 5-bit prescaler.
16-bit timer/counter
: 'THx' and 'TLx' are cascaded, there is no prescaler.
8-bit autoload timer/counter
: 'THx' holds a value which is to be reloaded into 'TLx'
each time it overflows.
Timer 0
: TL0 is an 8-bit timer/counter controlled by the standard Timer 0 control bits.
TH0 is an 8-bit timer controlled by Timer 1 control bits.
Timer 1
: Timer/counter 1 stopped.
1
1
1
1
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