參數(shù)資料
型號(hào)： NRF9E5-EVKIT433
廠商： Electronic Theatre Controls, Inc.
英文描述： 433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC
中文描述： 433/868/915MHz RF收發(fā)器與8051兼容的嵌入式微控制器和4輸入，10位ADC
文件頁數(shù)： 78/104頁
文件大小： 1436K
代理商： NRF9E5-EVKIT433
PRODUCT SPECIFICATION
nRF9E5 Single Chip Transceiver with Embedded Microcontroller and ADC
Main office: Nordic Semiconductor ASA - Vestre Rosten 81, N-7075 Tiller, Norway -Phone +4772898900 - Fax +4772898989
Revision: 1.1
Page 78 of 104
June 2004
all three timers is 0; that is, twelve-clock intervals. These bits have no effect in counter
mode.
Bit
CKCON.7,6
CKCON.5
Function
Reserved
T2M – Timer 2 clock select. When T2M = 0, Timer 2 uses CPU_clk/12 (for
compatibility with 80C32); when T2M = 1, Timer 2 uses CPU_clk/4. This bit has
no effect when Timer 2 is configured for baud rate generation.
T1M – Timer 1 clock select. When T1M = 0, Timer 1 uses CPU_clk/12 (for
compatibility with 80C32); when T1M = 1, Timer 1 uses CPU_clk/4.
T0M – Timer 0 clock select. When T0M = 0, Timer 0 uses CPU_clk/12 (for
compatibility with 80C32); when T0M = 1, Timer 0 uses CPU_clk/4.
MD2, MD1, MD0 – Control the number of cycles to be used for external MOVX
instructions; number of cycles is 2 + { MD2, MD1, MD0}
CKCON.4
CKCON.3
CKCON.2–
0
Table 67 CKCON Register – SFR 0x8E.
default initial data value is 0x01, i.e. MOVX takes 3 cycles.
18.8.3
Timer 2
Timer 2 runs only in 16-bit mode and offers several capabilities not available with
Timers 0 and 1. The modes available with Timer 2 are:
- 16-bit timer/counter
- 16-bit timer with capture
- 16-bit auto-reload timer/counter
- Baud-rate generator
The SFRs associated with Timer 2 are:
- T2CON – SFR 0xC8; refer to Table 68 T2CON Register – SFR 0x
- RCAP2L – SFR 0xCA – Used to capture the TL2 value when Timer 2 is configured
for capture mode, or as the LSB of the 16-bit reload value when Timer 2 is configured
for auto-reload mode.
- RCAP2H – SFR 0xCB – Used to capture the TH2 value when Timer 2 is configured
for capture mode, or as the MSB of the 16-bit reload value when Timer 2 is configured
for auto-reload mode.
TL2 – SFR 0xCC – Lower eight bits of the 16-bit count.
TH2 – SFR 0xCD – Upper eight bits of the 16-bit count.
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NRF9E5IC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:433/868/915MHz RF Transceiver with Embedded 8051 Compatible Microcontroller and 4 Input, 10 Bit ADC
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