参数资料
型号: MC68HC705J1AVDWR2
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDSO20
封装: SOIC-20
文件页数: 89/162页
文件大小: 1517K
代理商: MC68HC705J1AVDWR2
Technical Data
MC68HC705J1A — Rev. 3.0
32
Memory
MOTOROLA
Memory
2.3 Memory Map
Port A Data Register (PORTA)
$0000
Port B Data Register (PORTB)
$0001
Unimplemented
$0002
$0003
Data Direction Register A (DDRA)
$0004
Data Direction Register B (DDRB)
$0005
Unimplemented
$0006
$0007
Timer Status and Control Register (TSCR)
$0008
Timer Control Register (TCR)
$0009
$0000
I/O Registers
32 Bytes
IRQ Status and Control Register (ISCR)
$000A
Unimplemented
$000B
$001F
$0020
Unimplemented
160 Bytes
$000F
Pulldown Register Port A (PDRA)
$0010
$00BF
Pulldown Register Port B (PDRB)
$0011
$00C0
RAM
64 Bytes
Unimplemented
$0012
$00FF
$0017
$0100
Unimplemented
512 Bytes
EPROM Programming Register (EPROG)
$0018
Unimplemented
$0019
$02FF
$0300
EPROM
1232 Bytes
$001E
Reserved
$001F
$07CF
$07D0
Unimplemented
30 Bytes
COP Register (COPR)(1)
$07F0
Mask Option Register (MOR)
$07F1
$07ED
Reserved
$07F2
$07EE
Test ROM
2 Bytes
$07EF
$07F7
$07F0
Registers and EPROM
16 Bytes
Timer Interrupt Vector High
$07F8
Timer Interrupt Vector Low
$07F9
$07FF
External Interrupt Vector High
$07FA
External Interrupt Vector Low
$07FB
Software Interrupt Vector High
$07FC
Software Interrupt Vector Low
$07FD
Reset Vector High
$07FE
Reset Vector Low
$07FF
(1) Writing to bit 0 of $07F0 clears the computer
operating properly (COP) watchdog.
Figure 2-1. Memory Map
相关PDF资料
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