M16C6K9 Datasheet, PDF (12/292 Pages) Renesas Technology Corp – SINGLE-CHIP 16-BIT CMOS MICROCOMPUTER

M16C/6K9 Group
Pin Description
Pin Description
Pin name
P110 to P117
P120 to P127
P130 to P137
P140 to P147
P150 to P157
P160, P161
Signal name
I/O port P11
I/O port P12
I/O port P13
I/O port P14
I/O port P15
I/O port P16
I/O type
Input/output
Input/output
Input/output
Input/output
Input/output
Input/output
Function
This is an 8-bit I/O port equivalent to P0. By software select-
ing, P110, P111 also function as clock output pins, which the
frequency is the same with XIN (XCIN).
This is an 8-bit I/O port equivalent to P0. (Except that output
type is CMOS 3 state only.) By software selecting, this port
can be used for external interrupt input pin.
This is an 8-bit I/O port equivalent to P0. (Except that output
type is N channel open drain only; no internal pull-up
registor support.)
This is an 8-bit I/O port equivalent to P0. The port can be
used for key on wake-up interrupt 1 input pins. P140 to P143
are available for directly driving LED's. In input mode, the
pull-up register can be set in one bit unit by software.
This is an 8-bit I/O port equivalent to P0. (Except that output
type is CMOS 3 state only.) By software selecting, these
ports can be used for timer A0 to A2's output or SI/O3 and
SI/O4 I/O pins.
This is an 2-bit I/O port equivalent to P0. (Except that output
type is CMOS 3 state only.) By software selecting, this port
can be used for timer B3 and B4 input or PWM output pin.
Rev.1.00 Jun 06, 2003 page 12 of 290