參數(shù)資料
型號: M38275M2-XXXFP
廠商: Mitsubishi Electric Corporation
英文描述: Quad Low-Power Rail-to-Rail Input/Output Op Amp 14-SOIC 0 to 70
中文描述: 單芯片8位CMOS微機(jī)
文件頁數(shù): 11/70頁
文件大?。?/td> 1112K
代理商: M38275M2-XXXFP
11
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
3827 Group
I/O PORTS
Direction Registers
The I/O ports have direction registers which determine the input/
output direction of each individual pin. (P0
0
–P0
7
and P1
0
–P1
5
use
bit 0 of port P0, P1 direction registers respectively.)
When “1” is written to that bit, that pin becomes an output pin.
When “0” is written to the bit corresponding to a pin, that pin be-
comes an input pin.
If data is read from a pin set to output, the value of the port output
latch is read, not the value of the pin itself. Pins set to input are
floating and the value of that pin can be read. If a pin set to input
is written to, only the port output latch is written to and the pin re-
mains floating.
Port P3 Output Control Register
Bit 0 of the port P3 output control register (address 0007
16
) en-
ables control of the output of ports P3
0
to P3
7
.
When the bit is set to “1”, the port output function is valid.
When resetting, bit 0 of the port P3 output control register is set to
“0” (the port output function is invalid.) and ports P3
0
to P3
7
are
pulled up.
Pull-up Control
By setting the PULL register A (address 0016
16
) or the PULL reg-
ister B (address 0017
16
), ports P0 to P6 can control pull-up with a
program.
However, the contents of PULL register A and PULL register B do
not affect ports programmed as the output ports.
The PULL register A setting is invalid for pins set to segment out-
put on the segment output enable register.
Fig. 9 Structure of PULL register A and PULL register B
P0
0
,
P
0
1
pull-up
P0
2
,
P0
3
pull-up
P0
4
–P0
7
pull-up
P1
0
–P1
3
pull-up
P1
4
,
P1
5
pull-up
P1
6
,
P1
7
pull-up
P2
0
–P2
3
pull-up
P2
4
–P2
7
pull-up
PULL register A
(PULLA : address 0016
16
)
b7
b0
P4
1
–P4
3
pull-up
P4
4
–P4
7
pull-up
P5
0
–P5
3
pull-up
P5
4
–P5
7
pull-up
P6
0
–P6
3
pull-up
P6
4
–P6
7
pull-up
Not used (return “0” when read)
0 : No pull-up
1 : Pull-up
PULL register B
(PULLB : address 0017
16
)
b7
b0
Note :
The contents of PULL register A and PULL register B
do not affect ports programmed as the output port.
相關(guān)PDF資料
PDF描述
M38275M2-XXXFS Quad Low-Power Rail-to-Rail Input/Output Op Amp 14-PDIP 0 to 70
M38275M2-XXXGP Quad Low-Power Rail-to-Rail Input/Output Op Amp 14-PDIP 0 to 70
M38275M2-XXXHP Quad Low-Power Rail-to-Rail Input/Output Op Amp 14-HTSSOP 0 to 70
M38275MCMXXXFS Quad Low-Power Rail-to-Rail Input/Output Op Amp w/Shutdown 16-SOIC -40 to 125
M38275MCMXXXGP Quad Low-Power Rail-to-Rail Input/Output Op Amp w/Shutdown 16-PDIP -40 to 125
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M3828 BK001 制造商:Alpha Wire Company 功能描述:CBL 3COND 16AWG BLK 1000'
M3828 BK002 制造商:Alpha Wire Company 功能描述:CBL 3COND 16AWG BLK 500'
M3828 BK005 制造商:Alpha Wire Company 功能描述:CBL 3COND 16AWG BLK 100'
M3828 BK199 制造商:Alpha Wire Company 功能描述:CBL 3COND 16AWG BLK 3000=3000'
M3829 BK001 制造商:Alpha Wire Company 功能描述:CBL 4COND 16AWG BLK 1000'