參數(shù)資料
型號: P80C557E4EBB
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: Single-chip 8-bit microcontroller
中文描述: 8-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP80
封裝: 14 X 20 MM, 2.70 MM HEIGHT, PLASTIC, SOT-318-1, QFP-80
文件頁數(shù): 10/72頁
文件大?。?/td> 374K
代理商: P80C557E4EBB
Philips Semiconductors
Product specification
P83C557E4/P80C557E4/P89C557E4
Single-chip 8-bit microcontroller
1999 Mar 02
10
MOVX @DPTR,A
MOVX A,@DPTR
MOVX A, @Ri
MOVX @Ri, A
255
255
0
255
0
0
767
(XRAMP) = 02 H
(XRAMP) = 01 H
(XRAMP) = 00 H
0
Figure 5. Indirect addressing of AUX-RAM (768 Bytes), ARD bit in PCON = 0
512
511
256
255
6.2.2.1
The AUX-RAM Page Register is used to select one of three 256
bytes pages of the internal 768 bytes AUX-RAM for
MOVX-accesses via R0 or R1. Its reset value is (XXXXXX00).
AUX-RAM Page Register XRAMP
7
6
5
4
3
2
1
0
x
x
x
x
x
x
XRAMP1
XRAMP0
XRAMP (FAH)
Figure 6. AUX-RAM page register.
x: undefined during read, a write operation must write “0” to these locations
Table 3.
Description of XRAMP Bits
BIT
SYMBOL
FUNCTION
XRAMP.2–7
XRAMP.1
XRAMP.0
XRAMPx
XRAMP1
XRAMP0
reserved for future use
AUX-RAM page select bit 1
AUX-RAM page select bit 0
Table 4.
Memory Locations for All Possible MOVX Accesses
ARD
1
XRAMP1
XRAMP0
MOVX @Ri,A and MOVX A,@Ri instructions access:
0
0
0
AUX-RAM locations 0 .. 255 (reset condition)
0
0
1
AUX-RAM locations 256 .. 511
0
1
0
AUX-RAM locations 512 .. 767
0
1
1
no valid memory access; reserved for future use
1
X
X
External RAM locations 0 .. 255
MOVX @DPTR,A and MOVX A,@DPTR instructions access:
0
X
X
AUX-RAM locations 0 .. 767 (reset condition)
External RAM locations 768 .. 65535
1
X
X
External RAM locations 0 .. 65535
NOTE:
1. ARD (AUX-RAM Disable) is a bit in the Special Function Register PCON
相關PDF資料
PDF描述
P80C557E8 8 BIT MICROCONTROLLER
P83C557E8 8 BIT MICROCONTROLLER
P83C557E4EBB Single-chip 8-bit microcontroller
P83C557E4EFB Single-chip 8-bit microcontroller
P89C557E4EBB Single-chip 8-bit microcontroller
相關代理商/技術參數(shù)
參數(shù)描述
P80C557E4EFB 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 8-bit microcontroller
P80C557E4EFB/01,51 功能描述:8位微控制器 -MCU SINGLE-CHIP 8-BIT MCU RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
P80C557E4EFB/01,518 制造商:NXP Semiconductors 功能描述:
P80C557E4EFB/01,55 功能描述:8位微控制器 -MCU RMLS/1K RAM I2C ADC RoHS:否 制造商:Silicon Labs 核心:8051 處理器系列:C8051F39x 數(shù)據(jù)總線寬度:8 bit 最大時鐘頻率:50 MHz 程序存儲器大小:16 KB 數(shù)據(jù) RAM 大小:1 KB 片上 ADC:Yes 工作電源電壓:1.8 V to 3.6 V 工作溫度范圍:- 40 C to + 105 C 封裝 / 箱體:QFN-20 安裝風格:SMD/SMT
P80C557E4EFB/01,557 制造商:NXP Semiconductors 功能描述: