參數(shù)資料
型號(hào): P89C662
廠商: NXP Semiconductors N.V.
英文描述: 80C51 8-Bit Flash Microcontroller 32KB ISP/IAP FLASH with 1KB RAM(80C51 8位閃速微控制器,帶16KB ISP/IAP閃速存儲(chǔ)器和1KB RAM)
中文描述: 80C51的8位閃存微控制器具有32KB的ISP /聯(lián)合會(huì)與1kB的內(nèi)存(80C51的8位閃速微控制器,帶16KB的供應(yīng)商/聯(lián)合會(huì)閃速存儲(chǔ)器和閃存的1kB的RAM)
文件頁(yè)數(shù): 36/89頁(yè)
文件大?。?/td> 490K
代理商: P89C662
Philips Semiconductors
Product data
P89C660/P89C662/P89C664/
P89C668
80C51 8-bit Flash microcontroller family
16KB/32KB/64KB ISP/IAP Flash with 512B/1KB/2KB/8KB RAM
2002 Oct 28
36
Table 9.
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 21. 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 depending on the
value of the T2EX pin.
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.
T2OE
DCEN
SU01714
7
6
5
4
3
2
1
0
*
Bit
T2MOD
Address = 0C9H
Reset Value = XXXX XX00B
Figure 22. Timer 2 Mode (T2MOD) Control Register
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P89C668HBA 80C51 8-bit Flash microcontroller family 64KB ISP FLASH with 8KB RAM
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相關(guān)代理商/技術(shù)參數(shù)
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