M16C26 Datasheet, PDF (172/239 Pages) Renesas Technology Corp – 16-BIT CMOS SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M16C/20 SERIES

Udenvdeelropment
Preliminary Specifications Rev. 0.9
Specifications in this manual are tentative
Programmable I/O Ports
and
subject to change.
SINGLE-CHIP 16-BIT
M16C/26 Group
CMOS MICROCOMPUTER
Pull-up selection
NMI Enable
P85
Direction register
Data bus
Port latch
(Note)
NMI Interrupt Input
Pull-up selection
SD
Port Xc Select bit
Direction register
P87
Data bus
Port latch
P86
Data bus
Pull-up selection
Port Xc Select bit
Direction register
Port latch
NMI Enable
(Note)
fc
Rf
Rd
(Note)
Note :
symbolizes a parasitic diode.
Do not apply a voltage higher than Vcc to each port.
Figure 1.17.3. Programmable I/O ports (3)
CNVSS
CNVSS signal input
(Note 2)
(Note 1)
RESET
RESET signal input
(Note 1)
Figure 1.17.4. I/O pins
Note 1:
symbolizes a parasitic diode.
Do not apply a voltage higher than Vcc to each pin.
Note 2: A parasitic diode on the VCC side is added to the mask ROM version.
Do not apply a voltage higher than Vcc to each pin.
166
Renesas Technology Corp.