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参数资料
| 型号： | P89LPC902 |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
| 中文描述： | 8位微控制器两个小时80C51的核心具有1KB 3伏闪光的128字节RAM |
| 文件页数： | 17/55页 |
| 文件大小： | 1236K |
| 代理商： | P89LPC902 |
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P89LPC901 Special function registers
…continued
* indicates SFRs that are bit addressable.
Name
Description
SFR
addr.
MSB
P
P
8
9
P
R
1
[1]
[2]
All ports are in input only (high impedance) state after power-up.
BRGR1 and BRGR0 must only be written if BRGEN in BRGCON SFR is ‘0’. If any are written while BRGEN = 1, the result is unpredictable.
Unimplemented bits in SFRs (labeled ’-’) are X (unknown) at all times. Unless otherwise specified, ones should not be written to these bits since they may be used for other
purposes in future derivatives. The reset values shown for these bits are ‘0’s although they are unknown when read.
The RSTSRC register reflects the cause of the P89LPC901/902/903 reset. Upon a power-up reset, all reset source flags are cleared except POF and BOF; the power-on reset
value is xx110000.
After reset, the value is 111001x1, i.e., PRE2-PRE0 are all ‘1’, WDRUN = 1 and WDCLK = 1. WDTOF bit is ‘1’ after Watchdog reset and is ‘0’ after power-on reset. Other resets will
not affect WDTOF.
On power-on reset, the TRIM SFR is initialized with a factory preprogrammed value. Other resets will not cause initialization of the TRIM register.
The only reset source that affects these SFRs is power-on reset.
[3]
[4]
[5]
[6]
Bit address
8F
TF1
8E
TR1
8D
TF0
8C
TR0
8B
-
8A
-
89
-
88
-
TCON*
TH0
TH1
TL0
TL1
TMOD
TRIM
WDCON
WDL
WFEED1
WFEED2
Timer 0 and 1 control
Timer 0 HIGH
Timer 1 HIGH
Timer 0 LOW
Timer 1 LOW
Timer 0 and 1 mode
Internal oscillator trim register
Watchdog control register
Watchdog load
Watchdog feed 1
Watchdog feed 2
88H
8CH
8DH
8AH
8BH
89H
96H
A7H
C1H
C2H
C3H
00
00
00
00
00
00
00000000
00000000
00000000
00000000
00000000
00000000
-
-
-
-
T1M1
TRIM.5
PRE0
T1M0
TRIM.4
-
-
-
T0M1
TRIM.1
WDTOF
T0M0
TRIM.0
WDCLK
TRIM.3
-
TRIM.2
WDRUN
[5] [6]
PRE2
PRE1
[4] [6]
FF
11111111
Table 7:
Bit functions and addresses
Reset value
Hex
LSB
Binary
相关PDF资料 |
PDF描述 |
|---|---|
| P89LPC902FD | 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
| P89LPC902FN | 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
| P89LPC903 | 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
| P89LPC903FD | 8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
| P89LPC907FD | 71-331814-05S |
相关代理商/技术参数 |
参数描述 |
|---|---|
| P89LPC902FD | 功能描述:8位微控制器 -MCU 80C51 1K FL 128B RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| P89LPC902FD,112 | 功能描述:8位微控制器 -MCU 80C51 1K FL 128B RAM RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| P89LPC902FD.512 | 制造商:NXP Semiconductors 功能描述:8BIT MCU 1K FLASH 89LC902 SOIC8 |
| P89LPC902FD112 | 制造商:NXP Semiconductors 功能描述:IC 8BIT MCU 80C51 12MHZ SOIC-8 |
| P89LPC902FN | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit microcontrollers with two-clock 80C51 core 1 kB 3 V Flash with 128-byte RAM |
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