參數(shù)資料
型號: MC68HC08LT8CFGE
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP44
封裝: 10 X 10 MM, 1.40 MM THICKNESS, 0.80 MM PITCH, ROHS COMPLIANT, MS-026BCB, LQFP-44
文件頁數(shù): 151/156頁
文件大小: 1107K
代理商: MC68HC08LT8CFGE
Input/Output (I/O) Ports
MC68HC08LT8 Data Sheet, Rev. 1
94
Freescale Semiconductor
Addr.
Register Name
Bit 7
654321
Bit 0
$0000
Port A Data Register
(PTA)
Read:
PTA7
PTA6
PTA5
PTA4
PTA3
PTA2
PTA1
PTA0
Write:
Reset:
Unaffected by reset
$0001
Port B Data Register
(PTB)
Read:
PTB7
PTB6
00
PTB3
PTB2
PTB1
PTB0
Write:
Reset:
Unaffected by reset
$0002
Port C Data Register
(PTC)
Read:
PTC7
PTC6
PTC5
PTC4
PTC3
PTC2
PTC1
PTC0
Write:
Reset:
Unaffected by reset
$0003
Port D Data Register
(PTD)
Read:
PTD7
PTD6
PTD5
PTD4
PTD3
PTD2
PTD1
PTD0
Write:
Reset:
Unaffected by reset
$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:
DDRB7
DDRB6
00
DDRB3
DDRB2
DDRB1
DDRB0
Write:
Reset:
00000000
$0006
Data Direction Register C
(DDRC)
Read:
DDRC7
DDRC6
DDRC5
DDRC4
DDRC3
DDRC2
DDRC1
DDRC0
Write:
Reset:
00000000
$0007
Data Direction Register D
(DDRD)
Read:
DDRD7
DDRD6
DDRD5
DDRD4
DDRD3
DDRD2
DDRD1
DDRD0
Write:
Reset:
00000000
$0008
Data Direction Register E
(DDRE)
Read:
DDRE7
DDRE6
DDRE5
DDRE4
DDRE3
DDRE2
DDRE1
DDRE0
Write:
Reset:
00000000
$0009
Port E Data Register
(PTE)
Read:
PTE7
PTE6
PTE5
PTE4
PTE3
PTE2
PTE1
PTE0
Write:
Reset:
Unaffected by reset
$000C
Port-B High Current Drive
Control Register
(HDB)
Read:
R
PPI1L
HDB5
HDB4
HDB3
HDB2
PPI1CLKS1 PPI1CLKS0
Write:
Reset:
000000
U = Unaffected
X = Indeterminate
= Unimplemented
R
= Reserved
Figure 9-1. I/O Port Register Summary
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