參數(shù)資料
型號(hào): P87C54X2FBD,157
廠商: NXP Semiconductors
文件頁數(shù): 8/62頁
文件大小: 0K
描述: IC 80C51 MCU 256 RAM 44LQFP
產(chǎn)品培訓(xùn)模塊: Migrating from 8/16-Bit MCUs to 32-Bit ARMs
標(biāo)準(zhǔn)包裝: 800
系列: 87C
核心處理器: 8051
芯體尺寸: 8-位
速度: 33MHz
連通性: EBI/EMI,UART/USART
外圍設(shè)備: POR
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 16KB(16K x 8)
程序存儲(chǔ)器類型: OTP
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振蕩器型: 內(nèi)部
工作溫度: -40°C ~ 85°C
封裝/外殼: 44-LQFP
包裝: 托盤
其它名稱: 935271393157
P87C54X2FBD
P87C54X2FBD-ND
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)
2003 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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