參數(shù)資料
型號: MC68HC05L25PB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP52
封裝: TQFP-52
文件頁數(shù): 123/152頁
文件大小: 897K
代理商: MC68HC05L25PB
Input/Output Ports (I/O)
MC68HC05L25 Data Sheet, Rev. 3.1
72
Freescale Semiconductor
7.5.4 I/O Pin Transitions
A glitch can be generated on an I/O pin when changing it from an input to an output unless the data
register is first pre-conditioned to the desired state before changing the corresponding DDR bit from a
zero to a one.
7.5.5 I/O Pins with Subsystems
An I/O pin that is shared with another subsystem is in general configured as an input pin during reset,
except for LCD driver pins. The LCD driver output pins BP0:BP3 and FP0:FP24 are configured to output
VDD level during and after reset. See truth tables of each I/O port for more details.
Table 7-13. Port Control Register Bits Summary
Port
Bit
DDR
WOM
Pullup R
Module Control
Module
A
0
DDRA0
1
RAL
KWIE
KWIE0
KWI0
1
DDRA1
1
KWIE1
KWI1
2
DDRA2
1
KWIE2
KWI2
3
DDRA3
1
BZPE, KWIE
BZxx, KWIE3
KWI3/BZ
4
DDRA4
AWOM
RAH
ADON, EVCE
CH2:CH0/EVxx
AD0/EVI
5
DDRA5
ADON
CH2:CH0
AD1
6
DDRA6
RME
TBCLK, RMC4:RMC0
RMO
7
DDRA7
B
0
DDRB0
BWOML
RBL
LCDE, PBEL
F24B3:F24B0
FP24
1
DDRB1
F23B3:F23B0
FP23
2
DDRB2
F22B3:F22B0
FP22
3
DDRB3
F21B3:F21B0
FP21
4
DDRB4
BWOMH
RBH
LCDE, PBEH
F20B3:F20B0
FP20
5
DDRB5
F19B3:F19B0
FP19
6
DDRB6
F18B3:F18B0
FP18
7
DDRB7
F17B3:F17B0
FP17
C
0
DDRC0
CWOM
RC
SPE
MSTR, SPR
SCK
1
DDRC1
DORD, SPR
SDO
2
DDRC2
1
SDI
3
DDRC3
1
IRQE
IRQS
IRQ
1. Pullup resistor resistances are typical values with VDD = 3 V. See Chapter 15 Electrical Specifications for more details.
2. Port C bits 2 and 3 are open-drain outputs and do not have CMOS drive capability.
相關PDF資料
PDF描述
MC68HC05LJ5P 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP16
MC68HC05M4CFN 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC52
MC68HC05M4MFN 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQCC52
MC68HC05P1ADWR2 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDSO28
MC68HSC05P1ADWR2 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO28
相關代理商/技術參數(shù)
參數(shù)描述
MC68HC05L28 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
MC68HC05L28B 制造商:MOTOROLA 制造商全稱:Motorola, Inc 功能描述:Flexible general-purpose microcomputer
MC68HC05L2B 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
MC68HC05L2CB 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:High-density complementary metal oxide semiconductor (HCMOS) microcontroller unit
MC68HC05L6 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:8-Bit Microcomputer with Liquid Crystal Driver Circuitry