Pin Description - Renesas M16C/60 Series Hardware Manual

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M16C/6N5 Group

Pin Description

Tables 1.1.3 and 1.1.4 list the pin descriptions.
Table 1.1.3 Pin Description (1)
Pin name Signal name
V , V Power supply
CC1 CC2
V input
SS
CNV CNV
SS SS
RESET Reset input
X Clock input
IN
X Clock output
OUT
BYTE External data
bus width
select input
AV
Analog power
CC
supply input
AV Analog power
SS
supply input
V Reference
REF
voltage input
P0 to P0 I/O port P0
0 7
D to D
0 7
P1 to P1 I/O port P1
0 7
D to D
8 15
P2 to P2 I/O port P2
0 7
A to A
0 7
A /D to A /D
0 0 7 7
A ,
0
A /D to A /D
1 0 7 6
P3 to P3 I/O port P3
0 7
A to A
8 15
A /D ,
8 7
A to A
9 15
P4 to P4 I/O port P4
0 7
A to A ,
16 19
CS to CS
0 3
Rev.1.00 2003.05.30 page 6
I/O type
Apply 4.2 V to 5.5 V to the V
The V apply condition is that V
CC
Input
This pin switches between processor modes. Connect this pin to the V
pin when after a reset you want to start operation in single-chip mode
(memory expansion mode) or the V
microprocessor mode.
Input "L" on this input resets the microcomputer.
Input These pins are provided for the main clock generating circuit input/output.
Connect a ceramic resonator or crystal between the X
Output
pins. To use an externally derived clock, input it to the X
the X pin open.
OUT
Input
This pin selects the width of an external data bus. A 16-bit width is selected
when this input is "L"; an 8-bit width is selected when this input is "H".
This input must be fixed to either "H" or "L". Connect this pin to the V
pin when operating in single-chip mode.
This pin is a power supply input for the A-D converter. Connect this pin
to V .
CC1
This pin is a power supply input for the A-D converter. Connect this pin
to V .
SS
Input
This pin is a reference voltage input for the A-D converter and D-A
converter.
Input/output This is an 8-bit CMOS I/O port. This port has an input/output select direction
register, allowing each pin in that port to be directed for input or output
individually.
If any port is set for input, selection can be made for it in a program whether
or not to have a pull-up resistor in 4-bit unit. This selection is unavailable
in memory expansion and microprocessor modes.
This port can function as input pins for the A-D converter when so selected
in a program.
Input/output When set as a separate bus, these pins input and output data (D
Input/output This is an 8-bit I/O port equivalent to P0. P1
interrupt input pins as selected by a program.
Input/output When set as a separate bus, these pins input and output data
Input/output This is an 8-bit I/O port equivalent to P0. This port can function as input
pins for the A-D converter when so selected in a program.
Output These pins output 8 low-order address bits (A
Input/output If the external bus is set as an 8-bit width multiplexed bus, these pins input
and output data (D
separated in time by multiplexing.
Output If the external bus is set as a 16-bit width multiplexed bus, these pins input
Input/output and output data (D
by multiplexing. They also output address (A
Input/output This is an 8-bit I/O port equivalent to P0.
Output These pins output 8 middle-order address bits (A
Input/output If the external bus is set as a 16-bit width multiplexed bus, these pins input
Output and output data (D
multiplexing. They also output address (A
Input/output This is an 8-bit I/O port equivalent to P0.
Output These pins output A
Output 4 high-order address bits. CS
specify an access space.
Function
and V pins and 0 V to the V
CC1 CC2
= V
CC2 CC1.
pin when starting operation in
CC1
to P1
5
0
to D ) and output 8 low-order address bits (A
0 7
to D ) and output address (A
0 6
).
0
) and output address (A
7
to A
9
to A and CS to CS
16 19 0
to CS are chip select signals used to
0 3
Overview
pin.
SS
SS
and the X
IN OUT
pin and leave
IN
SS
to D ).
0 7
also function as INT
7
(D to D ).
8 15
to A ).
7
to A )
0 7
to A ) separated in time
1 7
to A ).
8 15
) separated in time by
8
).
15
signals. A to A are
3 16 19