參數(shù)資料
型號(hào): UPD703130
廠商: NEC Corp.
英文描述: MOS INTEGRATED CIRCUIT
中文描述: 馬鞍山集成電路
文件頁(yè)數(shù): 7/72頁(yè)
文件大?。?/td> 601K
代理商: UPD703130
Preliminary Data Sheet U15390EJ1V0DS
7
μ
PD703130
2. PIN FUNCTIONS
2.1 Port Pins
(1/2)
Pin Name
I/O
Function
Alternate Function
P00
TO100
P02
TCLR10
P04
INTP100/DMARQ0
P05
INTP101/DMARQ1
P06
INTP102/DMARQ2
P07
I/O
Port 0
6-bit I/O port
Input/output can be specified in 1-bit units.
INTP103/DMARQ3
P10
TO110
P12
TCLR11
P14
INTP110/DMAAK0
P15
INTP111/DMAAK1
P16
INTP112/DMAAK2
P17
I/O
Port 1
6-bit I/O port
Input/output can be specified in 1-bit units.
INTP113/DMAAK3
P20
Input
NMI
P22
TXD0/SO0
P23
RXD0/SI0
P24
SCK0
P25
TXD1/SO1
P26
RXD1/SI1
P27
I/O
Port 2
P20 is an input only port.
When a valid edge is input, this pin operates as NMI input. Also, bit 0
of the P2 register indicates the NMI input status.
P22 to P27 are 6-bit I/O port.
Input/output can be specified in 1-bit units.
SCK1
P33
TI13
P34
I/O
Port 3
2-bit I/O port
Input/output can be specified in 1-bit units.
INTP130
P50 to P57
I/O
Port 5
8-bit I/O port
Input/output can be specified in 1-bit units.
D8 to D15
P60 to P67
I/O
Port 6
8-bit I/O port
Input/output can be specified in 1-bit units.
A16 to A23
P70 to P73
Input
Port 7
4-bit input only port
ANI0 to ANI3
P80
CS0
P83
CS3/RAS3
P84
CS4/RAS4/IOWR
P85
I/O
Port 8
4-bit I/O port
Input/output can be specified in 1-bit units.
CS5/RAS5/IORD
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