參數(shù)資料
型號: MC68HC705J2CP
廠商: MOTOROLA INC
元件分類: 微控制器/微處理器
英文描述: HCMOS MICROCONTROLLER UNIT
中文描述: 8-BIT, OTPROM, 2.1 MHz, MICROCONTROLLER, PDIP20
封裝: PLASTIC, DIP-20
文件頁數(shù): 38/82頁
文件大?。?/td> 327K
代理商: MC68HC705J2CP
MOTOROLA
6-2
MEMORY
MC68HC705J2
Rev. 2
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
Figure 6-1. Memory Map
PORT A DATA REGISTER
PORT B DATA REGISTER
UNUSED
UNUSED
TIMER INTERRUPT VECTOR (HIGH)
TIMER INTERRUPT VECTOR (LOW)
EXTERNAL INTERRUPT VECTOR (HIGH)
EXTERNAL INTERRUPT VECTOR (LOW)
SOFTWARE INTERRUPT VECTOR (HIGH)
SOFTWARE INTERRUPT VECTOR (LOW)
RESET VECTOR (HIGH)
RESET VECTOR (LOW)
*
WRITING 0 TO BIT 0 OF $0FF0 CLEARS
COP TIMER. READING $0FF0 RETURNS
USER EPROMDATA.
$001C
$001D
$001E
$001F
$001B
$0009
$000A
$0008
$0007
$0006
$0005
$0004
$0003
$0002
$0001
$0000
$0FF7
$0FF8
$0FF9
$0FFA
$0FFB
$0FFC
$0FFD
$0FFE
$0FFF
PORT A DATA DIRECTION REGISTER
PORT B DATA DIRECTION REGISTER
UNUSED
UNUSED
TIMER CONTROL AND STATUS REGISTER
UNUSED
EPROMPROGRAMMING REGISTER
UNUSED
UNUSED
RESERVED
COP REGISTER
$0FF0
UNUSED
112 BYTES
$0000
$001F
$0020
$0FFF
I/O REGISTERS
32 BYTES
USER VECTORS
(EPROM)
16 BYTES
BOOTLOADER ROM
239 BYTES
$0FEF
$0FF0
$06FF
$0700
UNUSED
1536 BYTES
SRAM
112 BYTES
TIMER COUNTER REGISTER
UNUSED
$008F
$0090
$00FF
$0100
USER EPROM
2048 BYTES
USER
EPROM
8 BYTES
$0EFF
$0F00
$0F01
MASK OPTION REGISTER
$00BF
$00C0
STACK
64 BYTES
*
相關PDF資料
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MC68HC705J2DW HCMOS MICROCONTROLLER UNIT
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