參數(shù)資料
型號: P89C51UBPN
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 80C51 8-bit microcontroller family 4K/8K/16K/32K Flash
中文描述: 8-BIT, FLASH, 33 MHz, MICROCONTROLLER, PDIP40
封裝: 0.600 INCH, PLASTIC, MO-015AJ, SOT-129-1, DIP-40
文件頁數(shù): 17/68頁
文件大?。?/td> 404K
代理商: P89C51UBPN
Philips Semiconductors
Preliminary data
P89C51RA2/RB2/RC2/RD2xx
80C51 8-bit Flash microcontroller family
8KB/16KB/32KB/64KB ISP/IAP Flash with 512B/512B/512B/1KB RAM
2002 Jul 18
17
Table 3.
Timer 2 Operating Modes
RCLK + TCLK
CP/RL2
TR2
MODE
0
0
1
16-bit Auto-reload
0
1
1
16-bit Capture
1
X
1
Baud rate generator
X
X
0
(off)
OSC
÷
n*
C/T2 = 0
C/T2 = 1
TR2
Control
TL2
(8 BITS)
TH2
(8 BITS)
TF2
RCAP2L
RCAP2H
EXEN2
Control
EXF2
Timer 2
Interrupt
T2EX Pin
Transition
Detector
T2 Pin
Capture
SU01252
* n = 6 in 6-clock mode, or 12 in 12-clock mode.
Figure 7. Timer 2 in Capture Mode
Not Bit Addressable
Symbol
Function
Not implemented, reserved for future use.*
T2OE
Timer 2 Output Enable bit.
DCEN
Down Count Enable bit. When set, this allows Timer 2 to be configured as an up/down counter.
T2OE
DCEN
SU00729
7
6
5
4
3
2
1
0
*
User software should not write 1s to reserved bits. These bits may be used in future 8051 family products to invoke new features.
In that case, the reset or inactive value of the new bit will be 0, and its active value will be 1. The value read from a reserved bit is
indeterminate.
Bit
T2MOD
Address = 0C9H
Reset Value = XXXX XX00B
Figure 8. Timer 2 Mode (T2MOD) Control Register
相關(guān)PDF資料
PDF描述
P89C51UBAA-T 8-BIT MICROCONTROLLER
P89C51BA MICROCONTROLLER|8-BIT|8051 CPU|CMOS|LDCC|44PIN|PLASTIC
P89C51BBD MICROCONTROLLER|8-BIT|8051 CPU|CMOS|QFP|44PIN|PLASTIC
P89C51BP MICROCONTROLLER|8-BIT|8051 CPU|CMOS|DIP|40PIN|PLASTIC
P89C58UFAA 8-BIT MICROCONTROLLER
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
P89C51UFAA 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 4K/8K/16K/32K Flash
P89C51UFAA-T 制造商:未知廠家 制造商全稱:未知廠家 功能描述:8-Bit Microcontroller
P89C51UFBB 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 4K/8K/16K/32K Flash
P89C51UFPN 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit microcontroller family 4K/8K/16K/32K Flash
P89C51X2 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:80C51 8-bit Flash microcontroller family