CHAPTER 2 PIN FUNCTIONS
User’s Manual U12688EJ4V0UM00
65
2.4 Pin Input/Output Circuits and Recommended Connection of Unused Pins
If connecting to V
DD
or V
SS
via resistors, it is recommended that 1 to 10 k
Ω
resistors be connected.
Pin Name
Input/Output Circuit Type
Recommended Connection of Unused Pins
P00/TO100, P01/TO101
5
P02,TCLR10, P03/TI10
P04/INTP100/DMARQ0 to
P07/INTP103/DMARQ3
5-K
P10/TO110, P11/TO111
5
P12/TCLR11, P13/TI11
P14/INTP110/DMAAK0 to
P17/INTP113/DMAAK3
5-K
Input:
Independently connect to HV
DD
or
V
SS
via a resistor.
Output: Leave open.
P20/NMI
2
Connect directly to V
SS
.
P21
P22/TXD0/SO0
5
P23/RXD0/SI0
P24/SCK0
5-K
P25/TXD1/SO1
5
P26/RXD1/SI1
P27/SCK1
5-K
P30/TO130, P31/TO131
5
P32/TCLR13, P33/TI13
P34/INTP130
P35/INTP131/SO2
P36/INTP132/SI2
P37/INTP133/SCK2
5-K
P40/D0 to P47/D7
P50/D8 to P57/D15
P60/A16 to P67/A23
5
Input:
Independently connect to HV
DD
or
V
SS
via a resistor.
Output: Leave open.
P70/ANI0 to P77/ANI7
9
Connect directly to V
SS
.
P80/CS0/RAS0 to P83/CS3/RAS3
P84/CS4/RAS4/IOWR,
P85/CS5/RAS5/IORD
P86/CS6/RAS6, P87/CS7/RAS7
P90/LCAS/LWR
P91/UCAS/UWR
P92/RD
P93/WE
P94/BCYST
P95/OE
P96/HLDAK
P97/HLDRQ
P100/TO120, P101/TO121
5
Input:
Independently connect to HV
DD
or
V
SS
via a resistor.
Output: Leave open.
Содержание V850E/MS1 UPD703100
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