參數(shù)資料
型號: MC68HC11D3FU
廠商: 飛思卡爾半導體(中國)有限公司
英文描述: ROM-based high-performance microcontrollers
中文描述: 基于ROM的高性能微控制器
文件頁數(shù): 18/124頁
文件大?。?/td> 840K
代理商: MC68HC11D3FU
PIN DESCRIPTIONS
2-6
TECHNICAL DATA
2.10 Port Signals
In the 44-pin PLCC package, 32 input/output lines are arranged into four 8-bit ports:
A, B, C, and D.
The lines of ports B, C, and D are fully bidirectional. Each of these four
ports serves a purpose other than I/O, depending on the operating mode or peripheral
functions selected. Note that ports B, C, and two bits of port D are available for I/O
functions only in single-chip and bootstrap modes. Refer to
Table 2-1
for details about
the 32 port signals' functions within different operating modes.
*In the 40-pin package, pins PA4 and PA6 are not bonded. Their associated I/O and output compare functions are
not available externally. They can still be used as internal software timers, however.
Table 2-1 Port Signal Functions
Port/Bit
Single-Chip and
Bootstrap Mode
Expanded Multiplexed and
Special Test Mode
PA0/IC3
PA1/IC2
PA2/IC1
PA3/OC5/IC4/OC1
PA4/OC4/OC1
PA5/OC3/OC1
PA6/OC2/OC1
PA7/PAI/OC1
PA0
PA1
PA2
PA3
PA4*
PA5
PA6*
PA7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
PD0
PD1
PD2
PD3
PD4
PD5
PD6
PD7
PB0
PB1
PB2
PB3
PB4
PB5
PB6
PB7
PC0
PC1
PC2
PC3
PC4
PC5
PC6
PC7
ADDR8
ADDR9
ADDR10
ADDR11
ADDR12
ADDR13
ADDR14
ADDR15
ADDR0/DATA0
ADDR1/DATA1
ADDR2/DATA2
ADDR3/DATA3
ADDR4/DATA4
ADDR5/DATA5
ADDR6/DATA6
ADDR7/DATA7
PD0/RxD
PD1/TxD
PD2/MISO
PD3/MOSI
PD4/SCK
PD5/SS
PD6
PD7
AS
R/W
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
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