參數(shù)資料
型號： P87LPC769HD512
廠商： NXP Semiconductors N.V.
元件分類： 8位微控制器
英文描述： IC-SM-8-BIT MCU
中文描述： 集成電路釤8位微控制器
文件頁數(shù)： 42/61頁
文件大?。?/td> 306K
代理商： P87LPC769HD512
Philips Semiconductors
Preliminary specification
87LPC769
Low power, low price, low pin count (20 pin)
microcontroller with 4 kB OTP 8-bit A/D, and DAC
2001 Jan 11
39
Table 11. Baud Rates, Timer Values, and CPU Clock Frequencies for SMOD1 = 1
Timer Co nt
Timer Count
Baud Rate
2400
4800
9600
19.2k
38.4k
57.6k
–1
0.2304
0.4608
0.9216
* 1.8432
* 3.6864
5.5296
–2
0.4608
0.9216
* 1.8432
* 3.6864
* 7.3728
–
–3
0.6912
1.3824
2.7648
5.5296
–
–
–4
0.9216
* 1.8432
* 3.6864
* 7.3728
–
–
–5
1.1520
2.3040
4.6080
9.2160
–
–
–6
1.3824
2.7648
5.5296
–
–
–
–7
1.6128
3.2256
6.4512
–
–
–
–8
* 1.8432
* 3.6864
* 7.3728
–
–
–
–9
2.0736
4.1472
8.2944
–
–
–
–10
2.3040
4.6080
9.2160
–
–
–
–11
2.5344
5.0688
–
–
–
–
–12
2.7648
5.5296
–
–
–
–
–13
2.9952
5.9904
–
–
–
–
–14
3.2256
6.4512
–
–
–
–
–15
3.4560
6.9120
–
–
–
–
–16
* 3.6864
* 7.3728
–
–
–
–
–17
3.9168
7.8336
–
–
–
–
–18
4.1472
8.2944
–
–
–
–
–19
4.3776
8.7552
–
–
–
–
–20
4.6080
9.2160
–
–
–
–
–21
4.8384
9.6768
–
–
–
–
NOTES TO TABLES 10 AND 11:
1. Tables 6 and 7 apply to UART modes 1 and 3 (variable rate modes), and show CPU clock rates in MHz for standard baud rates.
2. Table 6 shows timer settings and CPU clock rates with the SMOD1 bit in the PCON register = 0 (the default after reset), while Table 7
reflects the SMOD1 bit = 1.
3. The tables show all potential CPU clock frequencies up to 10 MHz that may be used for baud rates. Other CPU clock frequencies that would
give only lower baud rates are not shown.
4. Table entries marked with an asterisk (*) indicate standard crystal and ceramic resonator frequencies that may be obtained from many
sources without special ordering.
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