参数资料
型号: MC68HC08AS20CFN
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, MICROCONTROLLER, PQCC52
封装: PLASTIC, LCC-52
文件页数: 47/96页
文件大小: 3243K
代理商: MC68HC08AS20CFN
5
MC68HC05E0
MOTOROLA
5-5
MEMORY AND ADDRESSING
Table 5-2 Register outline
Register name
Address
bit 7
bit 6
bit 5
bit 4
bit 3
bit 2
bit 1
bit 0
State on
Reset
Port A data register
$0000
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0
0000 0000
Port B data register
$0001
BD7
BD6
BD5
BD4
BD3
BD2
BD1
BD0
0000 0000
Port C data register
$0002
CD7
CD6
CD5
CD4
CD3
CD2
CD1
CD0
0000 0000
Port D data register
$0003
DD7
DD6
DD5
DD4
DD3
DD2
DD1
DD0
0000 0000
Port E data register
$0004
1
ED3
ED2
ED1
ED0
1111 0000
Port A data direction register
$0005
AR7
AR6
AR5
AR4
AR3
AR2
AR1
AR0
0000 0000
Port B data direction register
$0006
BR7
BR6
BR5
BR4
BR3
BR2
BR1
BR0
0000 0000
Port C data direction register
$0007
CR7
CR6
CR5
CR4
CR3
CR2
CR1
CR0
0000 0000
Port D data direction register
$0008
DR7
DR6
DR5
DR4
DR3
DR2
DR1
DR0
0000 0000
Port E data direction register
$0009
1
ER3
ER2
ER1
ER0
1111 0000
Timer A prescaler register
$000A
TA7
TA6
TA5
TA4
TA3
TA2
TA1
TA0
0000 0000
Timer B scaler register
$000B
TB7
TB6
TB5
TB4
TB3
TB2
TB1
TB0
0000 0000
Timer control register
$000C
SC1
SC0
PITX
PITW
1
XROM CETB
CETA 0000 1100
$000D
Interrupt control register
$000E
WAKF INTXP INTFB INTFA INTFX INTMB INTMA INTMX 0000 0001
SI data register
$000F
SD7
SD6
SD5
SD4
SD3
SD2
SD1
SD0
0000 0000
PortE/SI mode register
$0010
SIE
CPHA
CPOL
WL
BD1
BD0
PS1
PS0
0000 0000
SI S register
$0011
BB
ACK
TFF/
DOIT
IRQ/
ACK
NMA
SP
ST
R/WB 0000 0000
PortD mode register
$0012
EA15
EA14
EA13
DM4
DM3
DM2
DM1
DM0
0000 0001
Wake-up enable register
$0013
WE7
WE6
WE5
WE74
WE3
WE2
WE1
WE0
0000 0000
Wake-up phase register
$0014
WP7
WP6
WP5
WP74
WP3
WP2
WP1
WP0
0000 0000
$0015
$0016
$0017
RTI control register
$0018
RTIF
RTIE
RT1
RT0
0000 0011
RTI counter register
$0019
TC7
TC6
TC5
TC4
TC3
TC2
TC1
TC0
0000 0000
51
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