參數(shù)資料
型號(hào): P80C52X2BN
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 33 MHz, MICROCONTROLLER, PDIP40
封裝: 0.600 INCH, PLASTIC, MO-015, SOT-129-1, DIP-40
文件頁數(shù): 8/62頁
文件大小: 404K
代理商: P80C52X2BN
Philips Semiconductors
Product data
P80C3xX2; P80C5xX2;
P87C5xX2
80C51 8-bit microcontroller family
4K/8K/16K/32K ROM/OTP, low voltage (2.7 to 5.5 V),
low power, high speed (30/33 MHz)
2002 Jan 24
16
IT0
BIT
SYMBOL
FUNCTION
TCON.7
TF1
Timer 1 overflow flag. Set by hardware on Timer/Counter overflow.
Cleared by hardware when processor vectors to interrupt routine, or clearing the bit in software.
TCON.6
TR1
Timer 1 Run control bit. Set/cleared by software to turn Timer/Counter on/off.
TCON.5
TF0
Timer 0 overflow flag. Set by hardware on Timer/Counter overflow.
Cleared by hardware when processor vectors to interrupt routine, or by clearing the bit in software.
TCON.4
TR0
Timer 0 Run control bit. Set/cleared by software to turn Timer/Counter on/off.
TCON.3
IE1
Interrupt 1 Edge flag. Set by hardware when external interrupt edge detected.
Cleared when interrupt processed.
TCON.2
IT1
Interrupt 1 type control bit. Set/cleared by software to specify falling edge/low level triggered
external interrupts.
TCON.1
IE0
Interrupt 0 Edge flag. Set by hardware when external interrupt edge detected.
Cleared when interrupt processed.
TCON.0
IT0
Interrupt 0 Type control bit. Set/cleared by software to specify falling edge/low level
triggered external interrupts.
SU01516
IE0
IT1
IE1
TR0
TF0
TR1
TF1
Bit Addressable
TCON
Address = 88H
Reset Value = 00H
76
54
321
0
Figure 3. Timer/Counter 0/1 Control (TCON) Register
TLn
(8 Bits)
TFn
Interrupt
Control
C/T = 0
C/T = 1
THn
(8 Bits)
Reload
INTn Pin
Timer n
Gate bit
TRn
SU01619
OSC
÷ d*
Tn Pin
*d = 6 in 6-clock mode; d = 12 in 12-clock mode.
Figure 4. Timer/Counter 0/1 Mode 2: 8-Bit Auto-Reload
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