參數(shù)資料
型號: MC68HLC705KJ1CP
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PDIP16
封裝: PLASTIC, DIP-16
文件頁數(shù): 25/108頁
文件大?。?/td> 719K
代理商: MC68HLC705KJ1CP
Input/Output Register Summary
MC68HC705KJ1 MC68HRC705KJ1 MC68HLC705KJ1 Data Sheet, Rev. 4.1
Freescale Semiconductor
23
2.5 Input/Output Register Summary
Addr.
Register Name
Bit 7
654321
Bit 0
$0000
Port A Data Register
(PORTA)
Read:
PA7
PA6
PA5
PA4
PA3
PA2
PA1
PA0
Write:
Reset:
Unaffected by reset
$0001
Port B Data Register
(PORTB)
Read:
0
PB3
PB2
Write:
Reset:
Unaffected by reset
$0002
Unimplemented
$0003
Unimplemented
$0004
Data Direction Register A
(DDRA)
Read:
DDRA7
DDRA6
DDRA5
DDRA4
DDRA3
DDRA2
DDRA1
DDRA0
Write:
Reset:
00000000
$0005
Data Direction Register B
(DDRB)
Read:
0
DDRB3
DDRB2
Write:
Reset:
00000000
$0006
Unimplemented
$0007
Unimplemented
$0008
Timer Status and Control
Register (TSCR)
Read:
TOF
RTIF
TOIE
RTIE
00
RT1
RT0
Write:
TOFR
RTIFR
Reset:
00000011
$0009
Timer Counter Register
(TCR)
Read:
TCR7
TCR6
TCR5
TCR4
TCR3
TCR2
TCR1
TCR0
Write:
Reset:
00000000
$000A
IRQ Status and Control Reg-
ister (ISCR)
Read:
IRQE
000
IRQF
000
Write:
R
IRQR
Reset:
10000000
= Unimplemented
R = Reserved
U = Unaffected
Figure 2-2. I/O Register Summary (Sheet 1 of 2)
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