h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 153

• Manufacturer Part Number: h8s-2111b
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family / H8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

7.8.3
• P86/IRQ5/SCK1/SCL1
Notes: 1. When the IRQ5E bit in IER is set to 1, this pin is used as the IRQ5 input pin. When this
• P85/IRQ4/RxD1
Notes: 1. When the IRQ4E bit in IER is set to 1, this pin is used as the IRQ4 input pin.
SPS1*
P86ICE*
CKE1
C/A
CKE0
P86DDR
Pin Function
SPS1*
RE
P85DDR
Pin Function
The pin function is switched as shown below according to the combination of the C/A bit in
SMR of SCI_1, the CKE0 and CKE1 bits in SCR, the SPS1 bit*
of IIC_1, the IIC1AS and the IIC1BS bits in PGCTL*
P86ICE = ICE • (IIC1AS+IIC1BS)*
The pin function is switched as shown below according to the combination of the RE bit in
SCR of SCI_1, the SPS1 bit*
2
2
2. The program development tool (emulator) does not support this function.
3. The program development tool (emulator) does not support the function of PGCTL.
2. The program development tool (emulator) does not support this function.
3
Pin Functions
pin is used as the SCL1 I/O pin, bits CKE1 and CKE0 in SCR of SCI_1 and bit C/A 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.
Thus P86ICE is treated as ICE.
input
P86
pin
0
P85 input
0
pin
0
output
P86
pin
0
1
0
0
P85 output
2
output
SCK1
in SPSR, and the P85DDR bit.
pin
—
0
1
pin
0
1
3
0
output
SCK1
pin
—
—
1
RxD1 input
IRQ5 input pin*
pin
IRQ4 input pin*
—
1
SCK1
input
pin
—
—
—
1
3
, and the 86DDR bit.
I/O pin
SCL1
P85 input pin
—
1
0
0
0
1
Rev. 1.00, 05/04, page 119 of 544
1
0
2
in SPSR, the ICE bit in ICCR
input pin
P86
—
—
—
0
—
1
0
P85 output pin
output
P86
1
pin
—
—
—
1
1
I/O pin
SCL1
—
—
—
—
1