參數(shù)資料
型號: M37516M6-A40HP
廠商: Mitsubishi Electric Corporation
英文描述: SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
中文描述: 單芯片8位CMOS微機
文件頁數(shù): 8/54頁
文件大?。?/td> 358K
代理商: M37516M6-A40HP
8/54
M37516M6-XXXHP
GNOK-M37516M6-XXXHP-50
(MSETSU 2)
PA
GE
Pin
Name
Input/Output
I/O Structure
Non-Port Function
Ref.No.
(1)
(2)
(3)
(4)
Table 2 I/O port function
Related SFRs
I/O PORTS
The I/O ports have direction registers which determine the input/
output direction of each individual pin. Each bit in a direction reg-
ister corresponds to one pin, and each pin can be set to be input
port or output port.
When “0” is written to the bit corresponding to a pin, that pin be-
comes an input pin. When “1” is written to that bit, that pin
becomes an output pin.
If data is read from a pin which is 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. If a pin set to input is written to, only the port
output latch is written to and the pin remains floating.
Port P0
P0
0
/S
IN2
P0
1
/S
OUT2
P0
2
/S
CLK2
P0
3
/S
RDY2
P0
4
–P0
7
Port P1
Port P3
Input/output,
individual
bits
CMOS compatible
input level
CMOS 3-state output
Sub-clock generating
circuit
CPU mode register
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
(13)
(14)
(15)
P2
2
/SDA
1
P2
3
/SCL
1
Port P2
P2
4
/SDA
2
/RxD
P2
5
/SCL
2
/TxD
P2
6
/S
CLK
P2
7
/CNTR
0
/S
RDY1
Port P4
CMOS compatible
input level
CMOS/SMBUS input
level (when selecting
I
2
C-BUS interface
function)
N-channel open-drain
output
CMOS compatible
input level
CMOS/SMBUS input
level (when selecting
I
2
C-BUS interface
function)
CMOS 3-state output
N-channel open-drain
output (when
selecting I
2
C-BUS
interface function)
CMOS compatible
input level
CMOS 3-state output
I
2
C-BUS interface func-
tion I/O
I
2
C-BUS interface func-
tion I/O
Serial I/O1 function I/O
Serial I/O1 function I/O
Serial I/O1 function I/O
Timer X function I/O
A-D conversion input
I
2
C control register
I
2
C control register
Serial I/O1 control
register
Serial I/O1 control
register
Serial I/O1 control
register
Timer XY mode register
A-D control register
Timer XY mode register
Interrupt edge selection
register
Interrupt edge selection
register
Serial I/O2 control
register
Interrupt edge selection
register
PWM control register
P1
0
–P1
7
P2
0
/X
COUT
P2
1
/X
CIN
P3
0
/AN
0
P3
7
/AN
7
P4
0
/CNTR
1
P4
1
/INT
0
P4
2
/INT
1
P4
3
/INT
2
/S
CMP2
P4
4
/INT
3
/PWM
P4
5
—P4
7
Serial I/O2 function I/O
Serial I/O2 control
register
(16)
(17)
(18)
(5)
Timer Y function I/O
External interrupt input
External interrupt input
S
CMP2
output
External interrupt input
PWM output
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