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参数资料
| 型号： | P89LPC924 |
| 厂商： | NXP Semiconductors N.V. |
| 英文描述： | 8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter |
| 中文描述： | 8 -加速双位单片机80C51的时钟4 KB的核心/ 8 KB的3伏的低功耗Flash 8位A / D转换器 |
| 文件页数： | 13/49页 |
| 文件大小： | 233K |
| 代理商： | P89LPC924 |
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Special function registers
…continued
* indicates SFRs that are bit addressable.
Name
Description
SFR
addr.
MSB
P
P
8
9
P
R
1
[1]
[2]
[3]
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.
The RSTSRC register reflects the cause of the P89LPC924/925 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.
[4]
[5]
[6]
SSTAT
Serial port extended status
register
Stack pointer
Timer 0 and 1 auxiliary mode
BAH
DBMOD
INTLO
CIDIS
DBISEL
FE
BR
OE
STINT
00
00000000
SP
TAMOD
81H
8FH
07
00
00000111
xxx0xxx0
-
-
-
T1M2
8C
TR0
-
-
-
T0M2
88
IT0
Bit address
8F
TF1
8E
TR1
8D
TF0
8B
IE1
8A
IT1
89
IE0
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
T1GATE
RCCLK
PRE2
T1C/T
ENCLK
PRE1
T1M1
TRIM.5
PRE0
T1M0
TRIM.4
-
T0GATE
TRIM.3
-
T0C/T
TRIM.2
WDRUN
T0M1
TRIM.1
WDTOF
T0M0
TRIM.0
WDCLK
[5] [6]
[4] [6]
FF
11111111
Table 4:
Bit functions and addresses
Reset value
Hex
LSB
Binary
相关PDF资料 |
PDF描述 |
|---|---|
| P89LPC925 | 8-bit microcontrollers with accelerated two-clock 80C51 core 4 kB/8 kB 3 V low-power Flash with 8-bit A/D converter |
| P89LPC930 | 8-bit microcontrollers with two-clock 80C51 core 4 kB/8 kB 3 V Flash with 256-byte data RAM |
| P89LPC933 | 8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB 3 V byte-erasable Flash with 8-bit A/D converters |
| P89LPC934 | 8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB 3 V byte-erasable Flash with 8-bit A/D converters |
| P89LPC935 | 8-bit microcontroller with accelerated two-clock 80C51 core 4 kB/8 kB 3 V byte-erasable Flash with 8-bit A/D converters |
相关代理商/技术参数 |
参数描述 |
|---|---|
| P89LPC9241 | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB 3 V byte-erasable flash with 8-bit ADC |
| P89LPC9241FDH | 制造商:PHILIPS 制造商全称:NXP Semiconductors 功能描述:8-bit microcontroller with accelerated two-clock 80C51 core 2 kB/4 kB/8 kB 3 V byte-erasable flash with 8-bit ADC |
| P89LPC9241FDH,112 | 功能描述:8位微控制器 -MCU MCU 8-Bit CISC 4KB Flash2.5V/3.3V 20Pin 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 |
| P89LPC924FDH | 制造商:NXP Semiconductors 功能描述:MCU 8BIT 80C51 4K FLASH TSSOP20 |
| P89LPC924FDH,518 | 功能描述:8位微控制器 -MCU 4K FL/256B 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 |
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