HD6433935 Hitachi, HD6433935 Datasheet - Page 189

• Manufacturer Part Number: HD6433935
• Description: 8-Bit MICROCONTROLLER
• Manufacturer: Hitachi

Bits 7 and 6: Reserved bits
Bits 7 and 6 are reserved; they are always read as 1 and cannot be modified.
Bit 5: P4
This bit selects whether pin P4
Bit 5
SPC32
0
1
Note:
Bit 4: P3
This bit selects whether pin P3
Bit 4
SPC31
0
1
Note:
Bit 3: TXD
Bit 3 specifies whether or not TXD
Bit 3
SCINV3
0
1
Bit 2: RXD
Bit 2 specifies whether or not RXD
Bit 2
SCINV2
0
1
*
*
2
5/
/TXD
TXD
Set the TE bit in SCR3 after setting this bit to 1.
Set the TE bit in SCR3 after setting this bit to 1.
32
32
pin output data inversion switch
pin input data inversion switch
Description
Functions as P4
Functions as TXD
Description
Functions as P3
Functions as TXD
Description
TXD
TXD
Description
RXD
RXD
31
32
pin function switch (SPC31)
pin function switch (SPC32)
32
32
32
32
output data is not inverted
output data is inverted
input data is not inverted
input data is inverted
2
5
2
5
/TXD
/TXD
I/O pin
I/O pin
32
31
output pin*
output pin*
32
32
32
31
pin output data is to be inverted.
pin input data is to be inverted.
is used as P4
is used as P3
2
5
or as TXD
or as TXD
32
31
.
.
(initial value)
(initial value)
(initial value)
(initial value)
177