參數(shù)資料
型號(hào): MC68HC05SR3CFB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2 MHz, MICROCONTROLLER, PQFP44
封裝: QFP-44
文件頁(yè)數(shù): 29/96頁(yè)
文件大小: 3143K
代理商: MC68HC05SR3CFB
MC68HC05SR3
Freescale
4-3
MEMORY AND REGISTERS
4
4.5
I/O Registers Summary
Table 4-1 shows a summary of I/O registers for MC68HC05SR3/MC68HC705SR3 device.
Table 4-1 MC68HC05SR3/MC68HC705SR3 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
PB1
PB0
--00 0000
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
EPROM Programming Control
$0D
ELAT
PGM
---- --00
ADC Status and Control
(ADSCR)
$0E
COCO ADRC ADON
CH2
CH1
CH0
000- -000
ADC Data (ADDR)
$0F
AD7
AD6
AD5
AD4
AD3
AD2
AD1
AD0 uuuu uuuu
Mask Option (MOR)
$0FFF
SMD
SEC
TMR2 TMR1 TMR0
RC
unaffected
TPG
33
05SR3.Book Page 3 Thursday, August 4, 2005 1:08 PM
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