参数资料
型号: MC68HC11F1CPU4
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, EEPROM, 4 MHz, MICROCONTROLLER, PQFP80
封装: 14 X 14 MM, 1.40 MM HEIGHT, LQFP-80
文件页数: 145/162页
文件大小: 4554K
代理商: MC68HC11F1CPU4
PARALLEL INPUT/OUTPUT
MOTOROLA
TECHNICAL DATA
6-3
impedance state, as neither the N-channel nor the P-channel devices are active. It is
customary to have an external pull-up resistor on lines that are driven by open-drain
devices. Port C can only be configured for wired-OR operation when the MCU is in sin-
gle-chip or bootstrap modes.
DDC[7:0] — Data Direction for Port C
0 = Input
1 = Output
6.4 Port D
In all modes, port D bits [5:0] can be used either for general-purpose I/O, or with the
SCI and SPI subsystems. During reset, port D pins are configured as high impedance
inputs (DDRD bits cleared).
The DWOM control bit in the SPCR register disables port D’s P-channel output drivers.
Because the N-channel driver is not affected by DWOM, setting DWOM causes port
D to become an open-drain-type output port suitable for wired-OR operation. In wired-
OR mode, (PORTD bits are at logic level zero), pins are actively driven low by the N-
channel driver. When a port D bit is at logic level one, the associated pin is in a high-
impedance state, as neither the N-channel nor the P-channel devices are active. It is
customary to have an external pull-up resistor on lines that are driven by open-drain
devices. Port D can be configured for wired-OR operation in any operating mode.
PORTC — Port C Data
$1006
Bit 7
654321
Bit 0
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
S. Chip or
Boot:
PC7
PC6
PC5
PC4
PC3
PC2
PC1
PC0
RESET:
IIIIIII
I
Expan. or
Test:
DATA7
DATA6
DATA5
DATA4
DATA3
DATA2
DATA1
DATA0
DDRC — Data Direction Register for Port C
$1007
Bit 7
654321
Bit 0
DDC7
DDC6
DDC5
DDC4
DDC3
DDC2
DDC1
DDC0
RESET:
0000000
0
PORTD — Port D Data
$1008
Bit 7
654321
Bit 0
PD5
PD4
PD3
PD2
PD1
PD0
RESET:
0
IIIII
I
Alt. Pin
Func.:
SS
SCK
MOSI
MISO
TxD
RxD
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相关PDF资料
PDF描述
MC68322FT20 16-BIT, 20 MHz, RISC PROCESSOR, PQFP160
MC68HC08AS32VAFN 8-BIT, MROM, 8.4 MHz, MICROCONTROLLER, PQCC52
MC68HRC98JL3EMP 8-BIT, FLASH, 8 MHz, MICROCONTROLLER, PDIP28
MC9S12B64CPV16 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP112
MC68HC05C4AB 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PDIP42
相关代理商/技术参数
参数描述
MC68HC11F1CPU5 制造商:MOTOROLA 制造商全称:Motorola, Inc 功能描述:Technical Summary 8-Bit Microcontroller
MC68HC11F1CPUE5 制造商:Freescale Semiconductor 功能描述:
MC68HC11F1FB 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:ROM-based high-performance microcontrollers
MC68HC11F1FB1 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:ROM-based high-performance microcontrollers
MC68HC11F1FB3 制造商:FREESCALE 制造商全称:Freescale Semiconductor, Inc 功能描述:ROM-based high-performance microcontrollers