h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 274
h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
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Section 9 I/O Ports
Rev. 5.00 Sep 22, 2005 page 248 of 1136
REJ09B0257-0500
Pin
P33/TxD1
P32/SCK0/
IRQ4
P31/RxD0
P30/TxD0
Selection Method and Pin Functions
Switches as follows according to combinations of bit TE of SCR1 and bit P33DDR.
Note: * When P33ODR = 1, it becomes NMOS open drain output.
Switches as follows according to combinations of bit C/A of SMR0, bits CKE0 and
CKE1 of SCR0, and bit P32DDR.
Note: * When P32ODR = 1, it becomes NMOS open drain output.
Switches as follows according to combinations of bit RE of SCR0 and bit P31DDR.
Note: * When P31ODR = 1, it becomes NMOS open drain output.
Switches as follows according to combinations of bit TE of SCR0 and bit P30DDR.
Note: * When P30ODR = 1, it becomes NMOS open drain output.
TE
P33DDR
Pin function
CKE1
C/A
CKE0
P32DDR
Pin function
RE
P31DDR
Pin function
TE
P30DDR
Pin function
P31 input pin
P30 input pin
input pin
P33 input pin
P32
0
0
0
0
0
output pin
0
0
P31 output pin *
P30 output pin *
P32
0
1
0
1
1
P33 output pin *
0
SCK0 output
IRQ4 input
pin *
—
1
1
SCK0 output
TxD0 output pin *
RxD0 input pin
pin *
—
—
1
TxD1 output pin *
—
—
1
1
—
1
input pin
SCK0
—
—
—
1
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