HD64F2168 Datasheet, PDF (259/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

• P85/ExIRQ13/SCK1/ExTMI1
The pin function is switched as shown below according to the combination of the C/A bit in
SMR of SCI_1, the CKE1 and CKE0 bits in SCR, and the P85DDR bit.
When the ISS13 bit in ISSR16 of the interrupt controller is set to 1, this pin can be used as the
ExIRQ13 input pin. When the TMI1S bit in PTCNT0 is set to 1, this pin can be used as the
TMI1 (TMI1/TMRI1) input pin. To use this pin as the ExIRQ13 input pin, clear the P85DDR
bit to 0.
When this pin is used as the P85 output pin, the output format is NMOS push-pull output.
CKE1
C/A
CKE0
P85DDR
Pin function
0
0
P85 input pin
ExIRQ13 input pin
/ExTMI1 input pin
0
0
1
1

P85 output SCK1 output
pin
pin
1


SCK1 output
pin
1



SCK1 input
pin
• P84/ExIRQ12/SCK0/ExTMI0
The pin function is switched as shown below according to the combination of the C/A bit in
SMR of SCI_0, the CKE1 and CKE0 bits in SCR, and the P84DDR bit.
When the ISS12 bit in ISSR16 of the interrupt controller is set to 1, this pin can be used as the
ExIRQ12 input pin. When the TMI0S bit in PTCNT0 is set to 1, this pin can be used as the
TMI0 (TMI0/TMRI0) input pin. To use this pin as the ExIRQ12 input pin, clear the P84DDR
bit to 0.
When this pin is used as the P84 output pin, the output format is NMOS push-pull output.
CKE1
C/A
CKE0
P84DDR
Pin function
0
0
P84 input pin
ExIRQ12 input pin
/ExTMI0 input pin
0
0
1
1

P84 output SCK0 output
pin
pin
1


SCK0 output
pin
1



SCK0 input
pin
Rev. 3.00, 03/04, page 219 of 830