- 您现在的位置：买卖IC网 > PDF目录67722 > IS80C32-12PL (INTEGRATED SILICON SOLUTION INC) 8-BIT, 12 MHz, MICROCONTROLLER, PQCC44 PDF资料下载
参数资料
| 型号： | IS80C32-12PL |
| 厂商： | INTEGRATED SILICON SOLUTION INC |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 8-BIT, 12 MHz, MICROCONTROLLER, PQCC44 |
| 封装： | PLASTIC, LCC-44 |
| 文件页数： | 46/48页 |
| 文件大小： | 379K |
| 代理商： | IS80C32-12PL |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页当前第46页第47页第48页
IS80C52
IS80C32
Integrated Silicon Solution, Inc. — 1-800-379-4774
7
MC004-1D
11/19/98
ISSI
OPERATING DESCRIPTION
The detail description of the IS80C52/32 included in this
description are:
Memory Map and Registers
Timer/Counters
Serial Interface
Interrupt System
Other Information
MEMORY MAP AND REGISTERS
Memory
The IS80C52/32 has separate address spaces for program
and data memory. The program and data memory can be
up to 64K bytes long. The lower 8K program memory can
reside on-chip. (IS80C52 only) Figure 5 shows a map of the
IS80C52/32 program and data memory.
The IS80C52/32 has 256 bytes of on-chip RAM, plus
numbers of special function registers. The lower 128 bytes
can be accessed either by direct addressing or by indirect
addressing. The upper 128 bytes can be accessed by
indirect addressing only. Figure 6 shows internal data
memory organization and SFR Memory Map.
The lower 128 bytes of RAM can be divided into three
segments as listed below and shown in Figure 7.
1.
Register Banks 0-3: locations 00H through 1FH
(32 bytes). The device after reset defaults to register
bank 0. To use the other register banks, the user must
select them in software. Each register bank contains
eight 1-byte registers R0-R7. Reset initializes the
stack point to location 07H, and is incremented once
to start from 08H, which is the first register of the
second register bank.
2.
Bit Addressable Area: 16 bytes have been assigned
for this segment 20H-2FH. Each one of the 128 bits of
this segment can be directly addressed (0-7FH).
Each of the 16 bytes in this segment can also be
addressed as a byte.
3.
Scratch Pad Area: 30H-7FH are available to the
user as data RAM. However, if the data pointer has
been initialized to this area, enough bytes should be
left aside to prevent SP data destruction.
FFFFH:
64K
1FFFH:
8K
Program Memory
(Read Only)
Data Memory
(Read/Write)
EA = 0
External
PSEN
EA = 1
Internal
(IS80C52
Only)
0000
00
FFFFH:
External
Internal
FFH:
0000
RD WR
Figure 5. IS80C52/32 Program and Data Memory Structure
相关PDF资料 |
PDF描述 |
|---|---|
| IS80C32-40PLI | 8-BIT, 40 MHz, MICROCONTROLLER, PQCC44 |
| IS80C52PL | 8-BIT, MROM, 24 MHz, MICROCONTROLLER, PQCC44 |
| IS80C732-C | 8-BIT, 12 MHz, MICROCONTROLLER, PQCC44 |
| IS80C732-M | 8-BIT, 12 MHz, MICROCONTROLLER, PQCC44 |
| IS82C55A-596 | 24 I/O, PIA-GENERAL PURPOSE, PQCC44 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| IS80C32-12PLI | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
| IS80C32-12PQ | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
| IS80C32-12PQI | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
| IS80C32-12R | 制造商:未知厂家 制造商全称:未知厂家 功能描述:8-Bit Microcontroller |
| IS80C32-12W | 制造商:ISSI 制造商全称:Integrated Silicon Solution, Inc 功能描述:CMOS SINGLE CHIP LOW VOLTAGE 8-BIT MICROCONTROLLER |
发布紧急采购，3分钟左右您将得到回复。