HD6432160 RENESAS [Renesas Technology Corp], HD6432160 Datasheet - Page 223

• Manufacturer Part Number: HD6432160
• Description: Hitachi 16-Bit Single-Chip Microcomputer
• Manufacturer: RENESAS [Renesas Technology Corp]

8.9.2
P8DR stores output data for the port 8 pins (P86 to P80).
Bit
7
6
5
4
3
2
1
0
8.9.3
Note:* When the IRQ5E bit in IER is set to 1, this pin is used as the ,548 input pin. When this pin
ICE
CKE1
C/$
CKE0
P86DDR
Pin Function
P86/,548/ SCK1/SCL1
The pin function is switched as shown below according to the combination of the CKE1 and
CKE0 bits in SCR of SCI_1, the C/$ bit in SMR of SCI_1, the ICE bit in ICCR of IIC_1, and
the P86DDR bit.
is used as the SCL1 I/O pin, bits CKE1 and CKE0 in SCR of SCI_1 and bit C/$ in SMR of
SCI_1 must all be cleared to 0. When the P86 output pin and SCK1 output pin are set, the
output type is NMOS push-pull output. SCL1 is an NMOS-only output, and has direct bus
drive capability.
Bit Name
—
P86DR
P85DR
P84DR
P83DR
P82DR
P81DR
P80DR
Pin Functions
Port 8 Data Register (P8DR)
input pin
P86
0
Initial Value
1
0
0
0
0
0
0
0
0
output pin
P86
0
1
R/W
—
R/W
R/W
R/W
R/W
R/W
R/W
R/W
0
output pin
SCK1
Reserved
The initial value must not be changed.
If a port 8 read is performed while P8DDR bits are
set to 1, the P8DR values are read directly,
regardless of the actual pin states. If a port 8 read
is performed while P8DDR bits are cleared to 0, the
pin states are read.
Description
—
0
1
,548 input pin*
output pin
SCK1
—
—
1
Rev. 2.0, 08/02, page 183 of 788
input pin
SCK1
—
—
—
1
I/O pin
SCL1
—
1
0
0
0