H8S2110B RENESAS [Renesas Technology Corp], H8S2110B Datasheet - Page 143

• Manufacturer Part Number: H8S2110B
• Description: Renesas 16-Bit Single-Chip Microcomputer Renesas H8S Family/H8S/2100 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

7.6.2
P5DR stores output data for port 5 pins.
Bit
7
to
3
2
1
0
7.6.3
SPS1 *
ICE
CKE1
C/A
CKE0
P52DDR
Pin Function
Note: * When this pin is used as the SCL0 I/O pin by setting 1 to the SPS1 bit of SPSR, bits CKE1
P52/ExSCK1*/SCL0
The pin function is switched as shown below according to the combination of the CKE1 and
CKE0 bits in SCR, the C/A bit in SMR of SCI_1, the SPS1 bit* in SPSR, the ICE bit in ICCR
of IIC_0, and the P52DDR bit.
and CKE0 in SCR of SCI_1 and bit C/A in SMR must all be cleared to 0. SCL0 is an NMOS
open-drain output.
When set as the P52 output pin or ExSCK1 output pin, this pin is an NMOS push-pull
output.
The program development tool (emulator) does not support this function.
Bit Name
P52DR
P51DR
P50DR
Port 5 Data Register (P5DR)
Pin Functions
input
P52
pin
0
Initial Value
All 1
0
0
0
0
output
P52
pin
0
1
I/O pin
SCL0
1
R/W
R/W
R/W
R/W
input
P52
pin
0
Description
Reserved
The initial value should not be changed.
If a port 5 read is performed while P5DDR bits are
set to 1, the P5DR values are read directly,
regardless of the actual pin states. If a port 5 read
is performed while P5DDR bits are cleared to 0,
the pin states are read.
0
output
P52
pin
1
0
Rev. 2.00 Mar 21, 2006 page 105 of 518
ExSCK1 *
0
output
pin
1
0
1
ExSCK1 *
output
pin
1
Section 7 I/O Ports
REJ09B0299-0200
ExSCK1 *
input
pin
1
I/O pin
SCL0
1
0
0
0