參數(shù)資料
型號: MC68HC901P
廠商: MOTOROLA INC
元件分類: 外設(shè)及接口
英文描述: Multi-Function Peripheral
中文描述: MULTIFUNCTION PERIPHERAL, PDIP48
封裝: PLASTIC, DIP-48
文件頁數(shù): 14/73頁
文件大?。?/td> 274K
代理商: MC68HC901P
MOTOROLA
MC68HC901 USER’S MANUAL
2-1
SECTION 2
SIGNAL DESCRIPTION
This section contains descriptions of the input and output signals. The input and output
signals can be functionally organized into groups as shown in Figure 2-1. The following
paragraphs provide a brief description of the signal and a reference (if applicable) to other
sections that contain more detail about its function.
NOTE
Assertion
particular state.
active or true.
inactive or false. These terms are used independently of the
voltage level (high or low) that they represent.
and
negation
Assertion
Negation
are used to specify forcing a signal to a
and
assert
refer to a signal that is
and
negate
refer to a signal that is
Figure 2-1. Input and Output Signals
2.1 POWER SUPPLY (V
Power is supplied to the MFP using these connections. The V
and ground is connected to the GND pins.
CC
and GND)
CC
pin is powered at +5 volts,
I0 – I7
TAI
TBI
TAO
TBO
TCO
TDO
XTAL1
XTAL2
SERIAL I / O
CONTROL
SI
SO
RC
TC
TIMER
CONTROL
TR
DATA BUS
D0 – D7
RS1 – RS5
IRQ
IACK
GND
CLK
VCC
CS
DS
R / W
DTACK
INTERRUPT
CONTROL
ASYNCHRONOUS
BUS CONTROL
IEO
IEI
RESET
MC68HC901
MULTI-FUNCTION
PERIPHERAL
(MFP)
RR
REG SEL
POWER
SUPPLY
GPIP
CONTROL
DMA
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