h8s-2649 Renesas Electronics Corporation., h8s-2649 Datasheet - Page 233
h8s-2649
Manufacturer Part Number
h8s-2649
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2649.pdf
(766 pages)
- Current page: 233 of 766
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9.5.3
PORT5 shows the pin states. It cannot be modified.
Note:
9.5.4
The correspondence between the register specification and the pin functions is shown below.
• P52/SCK2
The pin function is switched as shown below according to a combination of the C/A bit in SMR
and bits CKE0 and CKE1 in SCR of SCI_2, and the P52DDR bit.
• P51/RxD2
The pin function is switched as shown below according to a combination of the RE bit in SCR of
SCI_2 and the P51DDR bit.
Bit
7 to 3
2
1
0
CKE1
C/A
CK0
P52DDR
Pin function
RE
P51DDR
Pin function
*
Port 5 Register (PORT5)
Pin Functions
Bit Name
P52
P51
P50
Determined by state of pins P52 to P50.
P52 input pin
Initial
Value
Undefined
*
*
*
0
P51 input pin
0
P52 output pin
R/W
R
R
R
0
1
0
Description
Reserved
If this register read is performed while P5DDR bits are
set to 1, the P5DR values are read. If this register read
is performed while P5DDR bits are cleared to 0, the pin
states are read.
0
0
SCK2 output
P51 output pin
pin
1
Rev. 2.00 Dec. 05, 2005 Page 195 of 724
1
SCK2 output
pin
1
RxD2 input pin
Section 9 I/O Ports
REJ09B0200-0200
SCK2 input pin
1
1
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