参数资料
型号: MC68HC705K1P
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2 MHz, MICROCONTROLLER, PDIP16
封装: PLASTIC, DIP-16
文件页数: 61/140页
文件大小: 3196K
代理商: MC68HC705K1P
Memory
Random-Access Memory (RAM)
MC68HC705K1 — Rev. 2.0
Technical Data
Memory
Figure 2-1. Memory Map
PORT A DATA REGISTER
PORT B DATA REGISTER
UNUSED
PORT A DATA DIRECTION REGISTER
PORT B DATA DIRECTION REGISTER
UNUSED
TIMER STATUS AND CONTROL REGISTER
TIMER COUNTER REGISTER
IRQ STATUS AND CONTROL REGISTER
UNUSED
PEPROM BIT SELECT REGISTER
PEPROM STATUS AND CONTROL REGISTER
PULLDOWN REGISTER A
PULLDOWN REGISTER B
UNUSED
EPROM PROGRAMMING REGISTER
COP REGISTER
RESERVED
TIMER VECTOR (HIGH BYTE)
TIMER VECTOR (LOW BYTE)
EXTERNAL INTERRUPT VECTOR (HIGH BYTE)
EXTERNAL INTERRUPT VECTOR (LOW BYTE)
SOFTWARE INTERRUPT VECTOR (HIGH BYTE)
SOFTWARE INTERRUPT VECTOR (LOW BYTE)
RESET VECTOR (LOW BYTE)
$0000
$0001
$0002
$0003
$0004
$0005
$0006
$0007
$0008
$0009
$000A
$000B
$000C
$000D
$000E
$000F
$0010
$0012
$0011
$0013
$0018
*
$0019
$001A
$001B
$001C
$001D
$001E
$001F
$03F0
$03F1
$03F2
$03F4
$03F3
$03F5
$03F6
$03F7
$03F8
I/O REGISTERS
32 BYTES
$0000
$001F
UNUSED
192 BYTES
$0020
$00DF
$00E0
USER
RAM
32 BYTES
STACK
RAM
32 BYTES
$00FF
$0100
UNUSED
256 BYTES
$01FF
$0200
USER VECTORS (EPROM)
TEST ROM AND
COP REGISTER
USER EPROM
496 BYTES
$03EF
$03F0
$03FF
*Writing to bit 0 of $03F0 clears the COP watchdog.
Reading $03F0 returns ROM data.
8 BYTES
$03F7
$03F8
(8 BYTES)
UNUSED
MASK OPTION REGISTER
$0014
$0015
$0016
$0017
UNUSED
TEST
$03F9
$03FB
$03FA
$03FC
$03FD
$03FE
$03FF
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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