参数资料
型号: MC68HC05SU3AFB
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP44
封装: QFP-44
文件页数: 25/80页
文件大小: 328K
代理商: MC68HC05SU3AFB
MC68HC05SU3A
MOTOROLA
4-3
MEMORY AND REGISTERS
4
4.5
I/O Registers Summary
Table 4-1 shows a summary of I/O registers for MC68HC05SU3A device.
Table 4-1 MC68HC05SU3A I/O Registers
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
$00
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
unaffected
Port B Data
$01
PB7
PB6
PB5
PB4
PB3
PB2
PB1
PB0
unaffected
Port C Data
$02
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
unaffected
Port D Data
$03
PD7
PD6
PD5
PD4
PD3
PD2
PD1
PD0
unaffected
Port A Data Direction
$04
DDRA7 DDRA6 DDRA5 DDRA4 DDRA3 DDRA2 DDRA1 DDRA0 0000 0000
Port B Data Direction
$05
DDRB7 DDRB6 DDRB5 DDRB4 DDRB3 DDRB2 DDRB1 DDRB0 0000 0000
Port C Data Direction
$06
DDRC7 DDRC6 DDRC5 DDRC4 DDRC3 DDRC2 DDRC1 DDRC0 0000 0000
Port D Data Direction
$07
DDRD7 DDRD6 DDRD5 DDRD4 DDRD3 DDRD2 DDRD1 DDRD0 0000 0000
Timer Data (TDR)
$08
TD7
TD6
TD5
TD4
TD3
TD2
TD1
TD0
1111 1111
Timer Control (TCR)
$09
TIF
TIM
TCEX
TINE
PRER
PR2
PR1
PR0
0100 -000
Port Option (POPR)
$0A
PIL
PDP
PCP
PBP
--00 00--
KBI Mask (KBIM)
$0B
KBE7
KBE6
KBE5
KBE4
KBE3
KBE2
KBE1
KBE0
0000 0000
Miscellaneous Control (MCR)
$0C
KBIE
KBIC
INTO
INTE
LVRE
SM
IRQ2F IRQ2E 0001 0000
Reserved
$0D
Reserved
$0E
Reserved
$0F
TPG
29
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