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M38747MCT-XXXG View Datasheet(PDF) - MITSUBISHI ELECTRIC

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M38747MCT-XXXG Datasheet PDF : 92 Pages
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MITSUBISHI MICROCOMPUTERS
3874 Group
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
Table 6 I/O port function (2)
Pin
Name
P70/SIN2
P71/SOUT2
P72/SCLK2
Por t P7
P73,P74
P75/BUSOUT
P76/BUSIN
Input/Output
Input/output,
individual bits
I/O Function
•CMOS compatible
input level
•CMOS 3-state output
Non-Port Function
•Serial I/O2 function I/O
Related SFRs
•Serial I/O2 control reg-
ister
•PULL UP register
•Data link layer commu-
nication control I/O
•Communication mode
register
•Transmit control regis-
ter
•Transmit status register
•Receive control regiser
•Receive status register
•Bus interrupt source
discrimination control
register
•Control field selection
register
•Control field register
•Transmit/Receive FIFO
Ref.No.
(15)
(16)
(17)
(1)
(18)
(19)
P77/ADT
P80/DA
P81
P82/SOUT3
P83/SIN3
P84/SCLK3
P85/SRDY3
P86/SBUSY3
P87/SSTB3
Port P8
•A-D trigger input
•A-D control register
(20)
Input/output, •CMOS compatible in- •D-A function output
•A-D control register
(21)
individual bits put level
(1)
•CMOS 3-state output
•Serial I/O3 function I/O •Serial I/O3 register/ (22)
Transfer counter
(23)
•Serial I/O3 control reg-
ister 1
(24)
•Serial I/O3 control reg- (25)
ister 2
(26)
•Serial I/O3 control reg-
ister 3
(27)
•Serial I/O3 automatic
transfer data pointer
P97/INT0
Port P9
Input
•CMOS compatib le •External interrupt input •Interrupt edge selection (28)
input level
register
Note: Make sure that the input level at each pin is either 0 V or Vcc during execution of the STP instruction.
When an input level is at an intermediate potential, a current will flow from Vcc to Vss through the input-stage gate.
15
 

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